hey bro. ANY GUN that isnt a springer is going to be pretty effective in a CQB environment. but AEPs simply don't have the battery capacity, reliability, or upgradability that your every day AEG does.
fact is that the MP7 is almost entirely barren when it comes to upgrade potential. the parts simply arent out there yet. and when they are theyll be a bitch to pay for.
it's a well built gun but for the same price you could just get a MP5K. then u have a gun that can be easily upgraded. is more sturdy than most. you can share mags with a good number of your teammates, and parts are a lot cheaper.
even when it comes to CQB though, if you compare the MP7 side by side with a MP5K, a P90, or any other compact/low profile gun, it siply wont stack up.
and bro, before you talk trash about my skills on the field, try playing me first. i think you'll find im not half bad (to say the least)