were do i find the weapon testing map everyone uses to test their weapons with and how do i make one
and how do make people not to attack me so i can test weapons

What about using tutorial bunker. They dont shoot you unless you walk to close. I think it is the perfect weapon testing map

ok ill try thanks but how do i stop enemies from coming in their crafts

Play it in campaign mode?

Seriously though, I think making a full concrete map and putting a couple of soldiers in it works the best.(if you save it in a .rte that start with zz it will load all map items instead of crashing.)

Play multiplayer. Make the other player place a brain and do nothing. Test your stuff.

or..... comment out skirmish activities in missions.rte
or, edit it so the soldiers gets no weapons.

Then you can just aswell get the CC light edition.(should be somewhere around here)