The spy is not ment to be a combat class. Stop whining about you suck at playing the spy. No way is valve going to give him infinte cloak, bring back an exploit, make him godlike, or give him an instant kill everything gun, or fireproof. If you want to fight then go play a combat class like the Soldier, pyro, heavy, demo. The spy requires stealth, smarty wits, tatics, and patience. Alternitively you can play battle sniper with a bow and get heat with a hit box the size of alaska/texas.