Make syringe gun can be craft

[Lord_earthfire]

The syringe gun is a terrific powerfull traitor weapon. It is very hard to give this tier of weaponry to non-antags, especially since we got a LRP-server.

But even if we decide we want to enable non-antags to have that, the amount of work/recource needed should be higher, e.g. needing to heavily modify the NT syringe gun