I always thought that was exactly what GBG is, But it seems almost no players want to do battle against another guild they just want to get fights anytime they log on with out having any time strategy or planning . I am obviously wrong, but I thought GbG was a test of which guild has the most active players.
Not sure you were here at the time in Nov 2019, when GbG was born. However, when released to the general population, people grabbed a strategy they knew best - that from GvG - and there was a whole lot of "king of the hill" mentality going on...
Until - some of us taught the rest of the guilds and players the concept of
Economic game theory (aka mutualism and cooperation)
, and demonstrated we could all spend a lot less (diamonds, traps, palaces, etc) and
make a lot more individually and collectively wealthy - if we cooperate.
And we did. Took about 6 months. and it took hold, and is the mostly dominant way we play today.
Everyone gets rich, not much focussed on "who won" or bragging rights.
Hence FP inflation, and many ARCS going to 180.
GbG begins it's 4th year next month. We're in the second map design, and many changes - both visible and invisible, but felt.