After capping an objective and it triggers a defense, the AI now calls in smoke mortars like 95% of the time. It really kills the game, when the entire time period of defense you can't see anything. Ruins the action and reduces the "gameplay" to just peering at doors until an enemy walks through..
It's made worse by the fact that at times the AI can see through smoke perfectly, and 100% of the time at JUST the moment the smoke is fading. The AI can ALWAYS see through the fading smoke first.