“The Big Guns skill determines your combat effectivness with all oversized weapons such as the Fat Man, Missile Launcher, Minigun, and Gatling Laser.”

The more points you have in Big Guns , the more damage they’ll do, and the better your accuracy in V.A.T.S. They already do a ton of damage, but that just means they’ll get that much better by focusing on Big Guns . Of course, this is a fairly specialized niche of weapons that have rather limited use and even more limited ammo. Granted, you’ll find more 5mm rounds than you can shake a stick at, but you’ll also burn through it like nothing else. Big Guns tend to be rather inefficient in V.A.T.S., as they take a lot of Action Points to fire, and interrupt the flow of firing manually, since many have a revving up time. They are also inaccurate at range, making them only

really useful in situations where you have enemies at short to middle range with little cover. They seem to work better for the computer than they do for me.