Want to know how to kill an IS3 in realistic tank battles? Use a Crusader Mk2 AAA, its easy
http://live.warthunder.com/post/340867/en/
http://live.warthunder.com/uploads/1.../AAA+IS3+1.png
http://live.warthunder.com/uploads/b.../AAA+IS3+2.png
http://cdn-live.warthunder.com/uploa.../AAA+IS3+3.png
http://cdn-live.warthunder.com/uploa.../AAA+IS3+5.png
http://cdn-live.warthunder.com/uploa.../AAA+IS3+4.png
http://cdn-live.warthunder.com/uploa...ath+Notice.png