More like everything proof except uber heavy. The flamethrowers would reflect the rockets, stickies and and pipebombs. And anything that would get close to it would just get airblasted away. Nice find btw.
Not fully spy protected. the whole buring doesn't kill a spy straight away, any spy could just backstab the engi then jump sap and then run! but other then that holy hell!
It takes about 4k metal to make it and the ammo is empty in about 5 seconds, but good luck with that! You would also need another engi to babysit it because if you got close to your own you would most likey die
my Lv4 sentry would have a frying stove so I can make myself bacon during those long wrench swinging sessions. gotta keep ma strength up, don't cha' know.