when i make a player it doesnt show up in player menu

I think you have to start a new game instead of loading an old one to add new players.

This should be in the help section.

Anyways, although I can't be sure, I think you are talking about creating bots. Make sure you have the bot file in the the Soldat bot folder. It's probably C\Program Files\Soldat\Bots

Soldat Manager. That standalone game.
I think yeah, start a new game.