Ok so I keep taking out the mini bosses, picking up their great weapons and....forgetting that I can't extract, but I do anyways, thus losing the great guns. I go back, and there's nobody there. Do they ever reset or anything? I think I've missed a grenade launcher and sniper rifle already. Is this a big deal at all? Game seems fairly easy at this point, but it's rare that I screw something up as easy as this.