Would it be possible to change it up so that you can only shoot the other team? I find it really annoying how everyone in my own team tries to shoot me and kill me all the time, even though that makes it harder for the team to win.

I don't think so :'(
But you can contact the Campal creator to do it!

In theory it's possible I think but not with present TFM Module API

campal @6732258

campal @6735731

campal @6735493

campal @6734063

campal @6741928