You grew up in a big family and consequently work much better in a team. You get +10% to all rolls when within the influence of other squad members.”— in-game description, Fallout Tactics
With this perk, you get +10% to all rolls when within the influence of other squad members.
J.E. Sawyer's Fallout Role-Playing GameEdit
There is no "I" in "ENCLAVE", and you know that better than anyone. You gain +2 to all skill checks when within the influence of at least two teammates.
Team Player has the same Vault boy image as Friendly Foe.
The perk is bugged and only seems to work within the influence of other squad members with the Team Player perk.