As someone that just recently finished this part of the map, here is my 2 cents:
1. Don’t remember about recurring quest so can’t comment.
2. if you have done the Indy map, there is a chance that you triggered the bonus provinces, and that will take over one of your Recurring slot until you get to Indy to get it back. I believe its the upper left province. Normally, you have 2 recurring slot starting in LMA, but the Indy bonus quest will take over 1 if you scout the province and trigger it.
3. About troops, if you fight all the way, the number of troops you get will be less, and more toward the end of the quest line. More specifically, while in Colonial, you will get 2 Jaegers and 1 rifleman from Industrial. If you negotiate some provinces, you can get more earlier, but the 2 Jaegers are good enough. Similarly, in Progressive, if you negotiate certain early provinces, you can get some troops early, but if you fight all the way, then you can only get 2 conscripts, and 1 armored car toward the end. That’s all for Colonial. When you get to Industrial, you can push all the way and get Modern and Postmodern troops. For Modern, it doesnt really matter if you fight or not, you will get a variety and more than enough. They aren’t that good, so I didn’t really care. For Postmodern, most people aim for the MG team. You will have to negotiate Che’s provinces, which are the first few. So if you already passed that by fighting, you won’t get them. You will get some commando, and a champion toward the end though, which aren’t that bad. But MG team is what you should aim for if it’s not too late.
There is a recent guide in the guide section talking About advanced troops. Check it out, and see if It’s not too late.