system
Given the following post, respond as if you're commenting on Reddit:
human
[Halo] Mac canons have some insane energy payloads for the Haloverse. How do ships dampen the recoil from that energy, especially without crumpling like a can?

A 600 tonne slug for ships, 3000 for orbital defense platforms or maybe the Infinity, and traveling at 0.04C...That energy payload is about 1000 times more than the Tsar bomb in real life, which itself was 1.4% the suns energy output on *the entire earth*.  
 
Speaking of which, if Halo Mac rounds can't one shot covanant ships, there is no way nukes should be able to even scratch them unless the weakest of them are a few hundred times more powerful than our most powerful bombs.
gpt
They don't.  They just go ahead and let the gun accelerate the ship.  A 600 ton slug, even fired at that speed, is only going to move a 100,000 ton ship so fast.  The engines can compensate after the slug is away.