I was thinking about this. Of course, maps currently are nothing like this so they would be unable to work with this idea, forcing people to update their maps. I think that a customization system should be implemented. It doesn't have to be too complex, but I would like a menu where you can use the character designer, whether your a heavy/lite battlesuit, and choose the weapons you have. Afterwards, if there is an approved (basically an official map I reckon) map you can go there and play the game using what you have customized. There are other options for the customization I was thinking about as well, such as specials for either battlesuit and two options for those specials. For lite, you can choose a Booster (extra jump) or Eagle Eye, the ability to see further ahead of you in any direction using a key.
For the heavy battlesuit, you are much more durable but slower. The two specials I was thinking for heavies was a Mobile Shield, a temporary invincible bubble around you, or Regenerator II, the ability to regenerate health much faster. If you have any ideas of abilities let me know, I'm sure these are probably the most unbalanced set of abilities but I'm constantly thinking about alternatives.