I do, and by lags I think u mean drops from 130fps to 10-11fps, very stable 11 fps, no ups or downs +-1

Yep.

I believe it has to do with the game now pre-loading x and xx models for singleplayer. This was recently introduced to fix the bug which caused dead vehicle textmods not matching when a savegame was loaded.
As the war machine begins with most vehicles on the map at startup, the game also loads all the damage models for those vehicles into memory. Once factions are chosen, those not chosen, are deleted. But I don't think the x and xx damaged models are deleted. Therefore they remain in memory reducing the overall availavble memory during gameplay.
This seems to result in a tipping point where no amount of lowering graphics or anything seems to help, except, having less activity similtaniously on the map.

My options seem to be reduce potential activity on map, or, rescripting spawning entirerly.

I dont believe it is because of that, since it uses 50% of all memories (cpu gpu ram) and I have also experienced it before on WARMACHINE V1.0

Hi Danny, yes the war machine always got a bit laggy at times. As it was always pushing the limits a little.
But this is more severe. After a chat with dev DJ, I am convinced that the changes made in the update regarding pre-loading has reduced available memory overall. And this is why it grinds down to a low fps much earlier with less entities than it used to.

I dont think is because of that, since sometimes I get it aflter "Enemy is throwing everything they have left at you" and sometimes in defence more before the timer runs out or even after kill 99% of the enemies... I don't think is about the memory, maybe it's a bug in the AI...