Hello I'm coming from Reddit (( https://m.reddit.com/r/arma/comments/4sfdvy/anyone_else_getting_massive_frame_dips_25_fps/?utm_source=mweb_redirect&compact=true )) and I've been getting this problem as well. It makes the game almost unplayable. I've had this problem since you added the new lighting and it's even more apparent on Tanoa. When I'm walking around I'll occasionally have my game freeze for a second or two, but when I'm in contact, every time someone shoots (especially people at about 50-100 meters) my game will freeze-sometimes up to minutes. The only solution in that case is to tab out and back in or restart. Super annoying.
None of the people I play with are experiencing this so I can't trouble shoot it on my own.
Specs:
2560x1440 @60Hz
Intel i7 Skylake
GTX 980
Please fix this.