Nice unuseful comment.
Training STUN weapon would look like:
Clip: 4 x 5
Damage: 0
Delay: 2000ms
Reload Time: 2.0
It's important to note that it is possible to restrict a player movement for 8 straight shots as it is right now. Delay would be lowered to 500 in training rooms. It IS possible to restrict player movement permanently in GOD tag training rooms. Nothing would be that affected as you think. That's the purpose of "/ghost playername".
Repeating:
And going back to the point, it's not about the STUN only. If it's not possible to make a training one for it, fine. At least make duplicates for the others.