>write overheating guns out in 2
>barely acknowledge it or try to explain the massive logistical issue of going from unlimited ammo to limited ammo
>nobody bothered keeping any spares around because a compact backup with infinite ammo would never be useful lol
>write a scene where shep talks down to someone for asking "stupid" questions about it
>3 reintroduces overheating guns as rare and they're just as strong as using thermal clips