Not just combat but in general.
- Do you think players should be required to interact with required group activities everywhere?
- Do you think players should be rewarded to interact like experience bonuses?
- Do you think interaction should be encouraged to interact through loose interdependency?
- Do you think everything should be able to do everything solo and don't need to interact on any level?
I think I am more in the number 3. I think if you give players the means to interact and a good reason too they will do so on their own. For example if players can gift temporary bonuses to each other like speed or buffs they will.
How do you lean?