[MOD REQUEST] TF2 Sentry Gun

[jbox1]

Hey look buddy, I'm an engineer. That means I solve problems, not problems like "What is beauty?" Because that would fall within the purview of your conundrums of philosophy. I solve practical problems, for instance: how am I going to stop some mean mother Hubbard from tearing me a structurally superfluous be-hind? The answer, use a gun, and if that don't work... Use more gun. Take for instance this heavy caliber tripod mounted lil' old number designed by me, built by me, and you best hope... Not pointed at you.

I'd like to be able to build the sentry gun from TF2. And if possible, to be able to perform upgrades to said sentry gun at the cost of mettal.