Okay, why not, here is save files:
http://nskvs.ru/assets/2013-10-06_23.13.06.sav
http://nskvs.ru/assets/2013-10-06_23.14.06.sav
Game crashes with when bullet hits aliens, but no all the time, approximately 1/2 chance.
Also I will try to start this battle from autosave but think this will not help me.
My hardware: Asus G55 (Core i7 3630QM, video GTX 660M) on Windows 8 and system works very stable.
Thanks a lot.