It's such a big plugin that is very very thought out, that even such a small change like this one would result in unwanted behaviour, to do such a thing with this specific game mode plug-in you would need to re-code a LOT of convoluted checks.
You could probably just use zp_respawn_user native from a separate plugin and respawn a player 3 times in that round, it's a relatively small plugin but still I would recommend against it, reply back if you really want it regardless I guess I can give it a try.