I am going to add on to your points here, and break it down into slightly smaller catagoeries. Solo (You, yourself, and I); Pros; Concealment is easy. Less Food, Drink, Ammo, Medical Supplies, and gear to carry. No "Friendly Fire." Your Pick of the best gear you find. Cons; Can Be lonely No Blood Transfusions with out massive risks from randoms. Can be flanked, and snucked upon easier Easy Target Hunter Killer Teams (Typically 2-3 players) & Squads (4-6players); Pros; Extra Eyes Less susceptible to being flanked and snucked upon Extra firepower More room for gear Conversations Trusted person for blood transfusions Covered while moving into a potential "Hot Zone" More ground covered Better for "Armed Vehicles" such as the "Huey" Helicopter More likely to be left alone (whose going to risk a 1 v 6 battle?) Cons; More Food, Drink, Ammo, and Gear required Less concealable Everybody has to figure out what gear goes to whom. (assigning roles to people helps with what gear they get, you have a brillant sniper, but is kinda sucks at close quarters, give them the sniper man, you find another one take it.) More penitential for "Friendly Fire" (Communicate all the time, your going to pull the trigger? Say "Sniper Firing AS50" for example or "Support firing." Think you see a player call it out and say where you see them, compass heading, landmarks, etc. Your going to move up, "Rifleman moving up right side." I am working on a post that'll cover more on multiple person tactics.