Grenades and Triffid Eggs now bounce off buildings (with sound effects)
Anthills: smarter about objectives. Ants are sent to clusters of spirits rather than individual distant spirits, and ants on attack orders focus on the enemy first instead of getting distracted by spirits along the way
Army Ants: resume previous orders if interrupted, increased search radius
Virii: no longer target Darwinians carried by ants, restored slowdown when approaching Engineers