Virus - Sonic shotgun spam on ladders is a problem

Recently, ive seen people start spamming sonic shotgun towards ladders on solar, knocking infected people down onto the main area where they will instantly die, even as enraged. this makes it difficult for infecteds to punish people camping in a spot and watching every door.

could there possibly be some cind of overheat thing so they cant spam it more that ~3x in a row?

Can I add here that the Sonic shotgun is OP in some other ways? You can abuse it so much and are able to launch people OOB in multiple maps and knock them out of the game forever.