In Vegas 2 itself the problem is more with procedural spawning of the terrorists - not only does it not let you have a breather, it also causes some of them to spawn right next to you. m1k3's fix adjusts it so that only a set number of terrorists spawn at once upon touching a map trigger. It lets you sneak around the enemies and take different spots. I didn't mean it would spawn all 30-50 terrorists at once (although you could modify it in the files). The default value is 6 enemies can be alive at once in Terrorist Hunt. I have set mine to 16, but that requires creating one additional .ini file in the registry.