Last Days of Humanity

+ add random tf2 weapons to loot tables
+ add two new structures Lumber Mill and Encampment

+ guns now show the type of ammo they require in their tooltip

+ landmines now apply player damage from the feet up

+ gas damage now apply player damage directly to the body (lungs)

+ mercs now automatically reroll their items and trades when spawning in structures, giving them more varied items and trades as well as removing errored weapons

~ rework unburied spawning mechanics to prevent them spawning in unintended locations

~ rework entity targeting mechanics (improved perfomance, fixed bug that cause mobs to attack unburied and wetas)
~ improve gas and gas mask rendering (gas and gas masks should now reduce visibility less)

~ rebalance vet loot tables