Three Man Army

"Survive 3 minutes on at least a 3 star Wanted Level with all three characters together off mission."

- In-game description

Three Man Army is an achievement/trophy in Grand Theft Auto V.

Acquisition
This achievement/trophy is unlocked after surviving a 3 star Wanted Level while Michael De Santa, Franklin Clinton and Trevor Philips are hanging out together.

It can be acquired by first calling up the other two protagonists while controlling the third and asking to hang out. Once together, gain a three star wanted level (the easiest way of doing this being to simply kill a cop) and then escape.