Here's the reason:
People are already sabotaging their own team by focussing too much on objectives (e.g. only cap and don't fight) which in turn causes the team to lose (e.g. 2 Mechs permanently capping leaves their own team in a 10vs12 fight and after winning the battle, the enemies just retake the cap points before it's too late).
A LOT of people don't have the slightest idea of tactics.
If the reward for non-combat activities would be even higher, even more people would flee the fight ("but I wanted to make money") and make the non-skirmisch game modes an even messier idiocy.
That is why.
The truth is:
Everything beyond skirmish needs REAL team work, REAL tactical competence, REAL disciplin among the lower monkeys.
It would turn from casual gaming into a work-like effort very quickly.
Even the tactically trivial non-skirmish game modes in their current form are too much to grasp for a lot of people.
Encouraging them in their stupidity would not be a good idea.
If PGI did it, a lot of people would complain that they "did it wrong again" and "never learn" etc. blabla for encouraging bad team play.
Edited by Paigan, 07 January 2017 - 04:59 AM.