The best idea that came to mind was to simply change the bullets that his men had access to, replacing them with blessed versions that will allow them fight against the Undead but more than half of his men were demons and that move was just an accident waiting to happen though he will still go through with it.
The second-best idea was to swap troops with someone else, he didn't know if this was even possible but the system did say that you are free to do as you liked in your territory so it should be fair game after all there was no law or rule that the system gave that prohibited such a move.
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{Good day everyone, I am looking forward to a troop swap, I am looking for any troop doesn't matter what rank, that has either a holy or Light attribute. Willing to trade with an SS-rank soldier or even an SSS-rank one. DM if interested}