Originally Posted by CJMPinger
Originally Posted by OcO
Originally Posted by marajango
I believe the reason for them sticking to 4 characters is that their engine probably can't handle more than 4 players at once in co-op.

This^^^

Then just limit to 4 players but allow up to two to recruit a companion, that issue is solved?

No it really doesn't because then they would basically have to rework all the encounter mechanics for it.