[TANNER]

Easy one, both.

GBBR Indoor (Ammo count is not a concern. Always close to more.)

AEG Outdoor (Need way more ammo to penetrate foliage. More ammo will usually be far away back at base.)

Ultimately you wont see many people running gas outdoors. Unless 1. It's a true milsim and the ammo count is capped putting you on a level playing field with an AEG. Or 2. The guy has been playing long enough to only need 1/6 of the ammo you do. << *I still do not fall into that category.