Chaos Warriors don’t feel special when you see a tide of a dozen of them marching on Legendary. And a CW patrol is an almost guaranteed wipe when it spawns on top of you with no warning noise, especially because specials like to immediately incapacitate half your team when that happens. The agro radius on CW Patrols also feels a lot sketchier than SV Patrols.
Just get rid of Chaos Patrols, Fatshark, and don’t over think this. It wouldn’t be ok for you to put an invisible, mobile landmine in the game that crashes the game if you step on it. Buff individual Chaos Warriors (but please stop them from instantly standing back up after knock downs, it is ridiculous for these dudes to nip up like a Berserker.), get rid of patrols.