In this guide I will outline, in fine detail, each aspect that went into a swap group I created for leveling the Great Building(GB), The Arc. This strategy would work for any GB, but this guide will focus specifically on getting an Arc from level 10 to 80 using a swap group. Why use a swap group? There are many ways to level a GB. I prefer to use self leveling with a level 80 Arc (hereby called Arc80) for their 1.9 reward bonus on all slots that reward Forge Points (FP). This is the method I used to get to level 10. After level 10 we now face the problem of needing 1 whole set of Blue Prints (BP) for each level. This can be a tedious problem that a swap group solves. What is a swap group? A swap group is a small group of players (anywhere from 2-5) that take different reward slots on one another's GB. For example, Player A would take 1st on player B, 2nd on player C, and 3rd on player D. Player B would take 1st on C, 2nd on D, and 3rd on A. This continues until each member has taken each reward slot. In my group of 4 each member will receive a 1st, 2nd, and 3rd place reward for each level our Arcs gain. This helps to offset the loss of any Arc80s who would normally be helping with a self leveled GB. Setting up the group. Send messages to guildies: I sent a message to every person in my guild with an Arc that was sub 40 (there were about 12). Three responded and I deleted everyone else from the group message. You can also find people outside your guild, but that's a little more difficult. Take initiative/be a leader: Likely someone else doesn't want to do the legwork of setting up the swap. Don't wait for someone like me to message you, be the person taking charge. I take lead in my group and the 3 others generally listen to me when there is a problem/dispute/weird occurrence (they are rare, more on this later) First, lay some ground rules on how the FP swaps will take place. For the Preset Style I wrote an excel spreadsheet with the amount each person would owe another for each level of the GB. Rule 1 was to not deviate on the preset amount unless outside forces influenced it. I also established a rule that this group should be the primary source of their FP spending until the group is disbanded. This prevents someone from slowing down the group because they are leveling a Blue Galaxy to 37 on the side. Make sure everyone has a similar FP production. Most of the people in my group make like 120-140 FP on paper every day. 2 of us are active snipers in neighborhood, friends list, and guild so we make 40-80 FP daily on top of that. That means we have 1 person in the group who is the slowest (someone will be) and waiting on FPs to level while I'm sitting on 4.5k FP packs banked. If you all have 75FP/day that's perfect. If you all have 150 and 1 person has 75, I would not include that person unless they could assure you they are a really active sniper and could make it up. Don't accept anyone with an Arc whose level is much greater than the rest of the group. It's a math nightmare, trust me. Try to set the group up with people who are within 5 levels of your Arc. This might mean finding them at lvl 11 and telling them to stop leveling their Arc until the other people in the group are caught up. Ideally, for math reasons, it's best if you're all the same level. I know that's unlikely, but I'll cover how to handle that best later. For the purpose of this guide I'll assume everyone is the same level. Starting the Group and levels 10-20 Now that you have the people in your group together and you are all the same Arc level, it's time to figure out how many FPs you are going to swap for each level. To avoid getting sniped by an Arc80 it's best to put on 3-5x the reward. So if the reward is 90 FP, put on 400+. For 2nd place and 3rd place I just kept the FPs constant for all 10 levels from 10-20. 325 FP for 2nd and 200 FP for 3rd. Contributions for levels 11-20 look like this for 1st place (remember, 2nd is always 325 and 3rd is always 200) 11: 450 12: 470 13: 490 14: 520 15: 550 16: 575 17: 600 18: 625 19: 660 20: 690 Each wave I post a new list of who owes who what, so no one messes it up! It looks like this Now, lets talk about total cost for each level. This is going to be the base amount of FPs it takes to get an arc leveled each wave. Next, we will talk about the actual cost of each level. That's the total cost minus the rewards from the previous level from getting a 1st, 2nd, and 3rd spot. 11: 995-262=713 12: 1020-304=691 13: 1045-333=683 14: 1071-375=670 15: 1098-405-670 16: 1125-449=651 17: 1154-480=646 18: 1182-524=626 19: 1212-556=629 20: 1242-602=613 **I leave about 30-40 FPs unclaimed by swap members for people in guild who want to take 4th or 5th, then it's up to the GB owner to put on the rest in a timely manner. So you can see that while the cost of leveling the Arc increases, so do the rewards and consequently the actual cost of leveling the Arc decreases with level. Levels 10-20 cost more FPs than 20-50, about 6,500 vs 6,000 respectively. So you can see why I call 10-20 a slog. Levels 21-50 After everyone in your group hits level 20 (this might take around 2 months) you will start utilizing Arc80 support. One for 1st place and one for 2nd. Hopefully you have some willing to help out. Now you complete the same calculations but everyone is now taking 3rd, 4th, 5th. The cost and the rewards are much less than 10-20 and so are the BPs. You will get a max of 17 BPs for lvl 20, and then it drops to 11 for 21. It will continue to increase after that, but as long as you are getting 9 per level, you should be good to go. When calculating FPs for 3rd, 4th, 5th from level 21-50 you have make sure the 3rd and 4th place FP cost is greater than the reward*1.9 or else it can be easily sniped. It gets much harder to do this and the margin is a lot smaller than it was in 10-20. In 21-50 the margin is like 2x the reward or sometimes 1.95. Levels 50 to 70 I have personally been taking spots on neighbors mid level Arcs to get 8-9 BP for a total loss of around 30-40 FP per reward. It usually consists of me taking 3rd place for ~250 FP and getting about ~210 back. Worth it for a full set of BP and around 10k medals. Doing this has allowed me to accrue 30 sets of BPs beyond level 20. Currently my arc is level 18 and can be unlocked to 50. Once we reach 50 with my swap group, I should be good to go solo until 80. It is at this point I'm going to powerlevel my Arc using 3-4 Arc80s in my guild where we get all 20 levels in about an hour. The total cost of doing this in FPs is around 3732 FP if places 1-5 are all Arc80. I don't expect 4th or 5th to be, so I'll make sure I have enough FPs. If you decide to swap group this the cost per person for each level should be really low to the point where you might benefit from saving FPs all week and then powerleveling 3-6 levels in one day to avoid snipes from neighbors. Levels 70-80 Hopefully by now you have enough BPs for 70-80. At this point it's probably easiest to self contribute and churn out the last 10 levels. The total cost of doing this is about 8k FPs. By this point your arc is 1.85 and you should be a sniping machine! _______________________________________________ When someone outside your group jacks up your swap Occasionally there will be a rogue neighbor or friend who decides they want to put 450 FP onto someone's building in your swap. This totally wrecks the math and someone ends up getting screwed out of FPs. If this happens there are a couple things you can do. 1: Remove that friend or message them nicely explaining they can get BPs for like 30 FP if they just wait for the Arc to level. 2: Try and pay back whoever didn't get paid FPs by X person. 3: Just roll with it. I suggest method 3. We are all in the group to get BPs and level our arcs. This happened yesterday: So I was supposed to put 325 FP on Jim's arc. I had already put on 60 and was about to use packs when I noticed it had already leveled. I came back a level and found this. So technically I owed Jim 265 more FP. However, since other people not in our group added 240, 32, and 31 FP and leveled it, I wasn't able to. Now in the grand scheme of things, I got 3 BP and not 4, and Jim's Arc got leveled. I got a smaller reward (21 FP) but I only put on 60. This is what I call getting hooked up. His neighbors or friends saved me 265 FP and Jim is right where we want him--another level. We could say I should pay him back since he put 325 on my Arc and I didn't swap his FPs back. But I've found, if the people in your group are chill, everyone gets hooked up at some point, and not trying to micro manage it is the best way to go about it. I ended up investing 80 FP into 2 friends' Arc and getting like 20 BPs out of it, so everything worked out fine! Other Tips Never unlock the next level of your Arc until you are ready to. It may be tempting to unlock all the way to 50 if you have the BPs, but after level 31 it is profitable for an Arc80 to snipe 1st without any other FP needing to be on the building. I've seen people have to put on hundreds of extra FP because a trusted friend didn't take 1st before a sniper. Check your hood daily for snipes. Checking once or twice can get you 0-100 FP per day. It's a lot! Once you get a decent Arc level you will be surprised how many more GBs you can snipe. Keep a decent amount of FPs in packs. If you don't have any FP to blow on snipes, then you can't make FPs from them! Keep around 500-1000 FPs in packs for profitable snipes for FPs or BPs (like me "sniping" my arc friends for -40 FP but lots of medals/BPs) Setting up a swap group for people of unequal Arc level: Here is where the math mayhem begins. If you end up in a group with people of 2 different levels. (We had 14, 14, 10, 10) just have the 2 14s trade 1st place and the 2 10s trade 1st place. The 14s will have to contribute more FP per level, but they will be equal to the other 14. The 10s will have to contribute that same amount when they are 14. If there are multiple people of unequal level consider the following: Have everyone help the lower level people until they reach the higher level. This is the nice approach. If people are something like 10, 11, 12, 12, get the 10 person to 11 and then use the method described above. If people are something like 10, 11, 11, 19, it gets a lot more difficult. For this I would consider getting the 10 to 11 and those 3 swap using the method described in this guide, and then they would give a static amount swapped with the 19 so he would end up leveling a lot slower. Phase people out at lvl 20. Turn your swap group to a 3 person swap and phase someone out. Phase them back in when everyone is lvl 20. If you have a specific example of a group setup that is confounding you you can post it and I can help you work it out. There are just too many "what ifs" for me to cover all of them Since we started with 2 14s and 2 10s, I decided to run the swap using the preset method for 10 levels for each person. So when we start the Arc80 phase we will have 2 Arc24s and 2 Arc20s. You can view my spreadsheet here. It's pretty crazy, but if you look at it for a minute I'm sure you can figure it out. It's also not totally done. Feel free to copy it and use it yourself. I've disabled editing on this online copy. You can view and use my snipe calculator here. Just insert how many FP are on it (you have to subtract how many you have on it in your head), total FP, 2nd place for the reward you're going for and then the reward. Don't forget to use the correct arc bonus I think that's it. If you have any questions, comments, concerns please post them and I'll amend this guide accordingly.