A minor update - rebalancing of the player units, more aggressive AI — Invasion Machine Steam update #238092

Minor update Before I continue working on the next updates to the high value targets system, I wanted to make some small fixes and very needed fixes to two areas of the game - the player vehicles and the AI responses in combat. Player Vehicles will now be driving noticeably faster - I've tuned their engines to increase the acceleration and responsiveness, cause I always was finding myself sending the helicopter everywhere instead of the ground vehicles in playtests, since I didn't want to wait for the sluggish cars to arrive where I sent them. Every player car will now be (a little) snappier, The enemy AI in combat was getting too confused in the latest builds, causing many of the enemy units not to shoot back at you at all, when engaged. This was caused by them trying to do multiple reactions too often, or eveb at once - trying to flank you, run away, shoot back, but find a better place...