its both,with most mods and the base game,but more so with mods the AI brakes down over time and stops shooting at you etc.due to all the bugs in the mod and game. thats why so many dislike arma games.IMO 2 OA had the best ai as far as not as buggy.But what your talking about is imo a bug cause the stuff spawned in so close..start over and pick better starting options,make the zones alot farther away from your base..This mod is a big bug tho,fps will drop just due to them.The mod is a cool idea tho,a few other guys took the base and been building on it.IMO the nilla mod this one,is broken.No real point to think you can play for even 5 hours before it starts to become unbareable. The AI on both sides brakes pretty fast and tanks and trucks will be flipped over on the map causeing more bugs and so on. Some will be stuck in the ground,some tank crews will just leave the tank for no reason..its a broke mod imo.needs tons of work.But i do not think that will happen,SO go DL the modded one of this and so on. And i do not think this mod has the old function of clearing dead bodies,i seen some on the map for hours.And that will cause alot of problems for some reason even on beast pcs like yours and mine. As soon as this game starts to get slow downs..what ever game mode your in,has already ran into scripting errors and all kinds of stuff.