The subject is clear I think

Instead of pushing players to rage quit in antagonist you should realy think about a system to let the antagonist leave the game when he want.
It's already enable for the raider I don't understand why an antagonist could not surrender.

When a game is lost you can know it. It dont make sense to watch raiders accomplish their objectives. If you want to do that nowadays we can go on youtube looking at people streaming. You dont play a game to be taken as an hostage.

Sure there is a difference in term of level with mobs but it won't change the tide of the game if  the anta doesnt respawn. I'm sure you could find a way to buff mobs while the game's running, or debuffing raiders.