"True teamwork" means people working together collaboratively and effectively, supporting and relying on each other to achieve a common goal. Full definition
It'd be nice to see features introduced that bring players together, like missions that require true teamwork and perhaps trading areas where you can swap gear. (wolfsgamingblog.com)
Implicit in true teamwork is an emphasis on results. (ascd.org)
From day one, Schizoid promised true teamwork where players have to rely on a friend to survive and advance through the game. (co-optimus.com)