Arma 2 with the ace 2 mod is a blast! There are a decent variety of mods, and there are a decent variety rifles. You can even find mods with more sniper rifles that work with the ACE 2 mod. My only complaint is that the mil-dot system in-game is slightly different, and that some rifles don't have bi-pods when they should. It's one hell of a fun game! You may need to monkey around with it some to get everything working with the mod, but everything is totally worth it, There are two spotting scopes, ranging tables, tracer rounds, and more!