What this game really needs is more sniper rifles and better weapon customization. If there was a Dragunov, Intervention, and an AWP, rush would be so much better.
What would make this game a lot better would be a better weapon customization menu. For example, instead of having to equip the silencer on all of your guns, you could just get it on your pistol. Also, add more scopes, and maybe foregrips/grenade launchers. Like so that Roka can see this!
I love the realistic environments in this game. The developers included all of the things you would see in a real town, like streets, sidewalks, gas barrels, ATMs, factories, machine gun turrets, and mangled corpses.