I can't make any sense out of your suggestion. If you want the guns to be "balanced" or buffed or nerfed please come up with a graph that shows why they should be nerfed. As in damage to the head/body etc.
I can say that the Tec-9 is either really good and needs to be nerfed or its how it is now. A lot has been done to it but there is just no right one for it.
The sniper is fine how it is. Its a risky gun to use and there for a 1 hit headshot is enough.
I will however take some time to test things myself in the upcoming weeks.
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