So if a single artillery piece (or multiple, whichever works better) hits you, then for a certain amount of time after that, the next stun from that arty is reduced by a percentage. The timer resets, and this process can stack a given number of times, up to a minimum stun duration cap. When the “crew brace” period runs out, all the stacks you have are lost and you start at full stun upon the next hit.

The goal of this would be to make getting focused by an artillery piece all game is less frustrating, and to encourage the artillery player to spread their fire, rather than just ruining one players game.