6 for melee sneak attacks - toss in Ninja to get huge sneak attack damage, and for (ranged only) mister sandman with silenced weapons for 6. Also contains an Institute Bunker which you can use for some R&R. As anyone with a fondness for the loyal companion will know, that doesn't really seem fair.
As part of QuakeCon 2015, Bethesda revealed today that the vault dweller of Vault 111 (that's you!) will have 12 companions that can join you in your quest to … well, most of the plot is currently a mystery.
