@UP_HawxxeyeIts not even about ability to kill hoards of enemies.
Even a simple task of reviving, staying in the flag area, having no clue where the enemies might be coming from, not dropping ammo etc etc. The list goes on.
Sometimes I get some really good randoms and have an absolute blast playing together. Especially when they see you as a good player, and start following you. Not only they're helping in more ways they realize, they also learn alot when moving around with skilled players. Learning enemy spawns, learning cover, rotation etc
Camping in a corner means not only you know nothing, but you also learn nothing while you're at it.
