It's a Shadow the Hedgehog reference, and also based on the Pancor Jackhammer as well. I mainly based it on BO6's Pancor Jackhammer pumping animation
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Thanks for the speedy reply! Knowing it's a reference helps a bit.
I appreciate the offer to remove the animation, as the mod does seem to be aiming for "cinematic realism" (e.g. "Looks good, but we're ignoring the less exciting parts,") and removing the weirdness would reduce the tonal clash.
...I can't repay you, of course, and I have no real power or authority, but it would make me really happy if you did.