This isn't visual but it's a useful campaign glitch. It allows you to use the same weapon on the second turn, even one-use weapons (e.g., scopes), at any range (hammer works too).
1. Get into a campaign battle on auto-mode and let it do the first turn (unequip drone for better results)
2. After the bot ends and your turn starts, immediately turn of auto-battle before the animation ends
3. Now you can use that weapon again
Fun fact: I found this glitch an hour ago
(lemme add a video)
It's funny how stomps also kill from distance.
891461166_SuperMechs-BuildFightPrevail!2021-07-1913-52-12(1).mp4