found a bug, the first one for me.

i was doing some testing on the effektiveness of ghillie suit. i was playing as a USMC spotter(has ghillie suit) starting about 100 meters from 2 Russian riflemen looking towards me, 1 was on Safe and one on aware. then i hit the dirt and started crawling towards them,
the one on aware would spot me about 10 meters away and kill me. I Tried again removing the one on Aware and started crawlin again but the guy on safe didnt do a thing. i crawled all the way to his feet. at one point he crouched down and started looking at me but kept his gun lowered. after touching his feet with no response from him i sat up. nothing, stood up, nothing, started to run in circles around him, he turned to look at me but didnt raise his gun to shoot me. then i started running away and still nothing.

however if i start standing and run towards him he shoots me alright.

In night time it's even worse. if i run standing up he will shoot me at 5 meters distance but if i run crouched down he wont shoot at all in any cases whatsoever, even after firing my gun.

EDIT: if i close to him but not directly towards him he will spot me sooner or later and engage but when moving straight towards him he does nothing but sit down and look at me.

I think this has to do with the lowered hearing of the AI in 1.03 IIRC...people were complaining that the AI could hear them too far away and kill them; so BIS changed it (albeit a little too low) and now they are almost def. Hopefully they or some modders can tweak it some more in the future