The AI in the new patch seems to act very strangely in regards to firing at enemies. In skirmish defense missions allies do not seem to be firing properly at advancing enemy units, especially infantry tanks also seem to have problems with this. In skirmish attack missions the same thing happens. I have a few screenshots which illustrate this AI weirdness.

http://steamcommunity.com/profiles/7...694?tab=public
http://steamcommunity.com/profiles/7...722?tab=public
http://steamcommunity.com/profiles/7...631?tab=public

the Jagdpanzer in the screenshot came down on the right behind some trees, stared my AT gun in the face and then drove straight away from it allowing me to point blank fire at its engine. I believe I may have even fired at it when it was facing straight at my AT gun and was unable to penetrate its armor.

I saw in the patch notes that "AI units no longer fire at unknown" I assume this is linked to this, I thought it was weird how my AT guns would be targeted by tanks when they had not even fired, however this is going too far in my opinion. The game has become strange and hard mode is now as easy as normal.