and tip just get your colt up to lvl 2 on everything and reloading lvl 4 then save for ur assistant then get scavenger. you should be able to get to wave 10-15 if u max ur colt then save for the tec-9 an max that (reload first) i used that up to wave 33 with that then lvl ur assistant just use ur tec-9 keep buying ammofor it. then i got the ak47 and used my tec until i maxed it stats made it to round 44 with ak47then got minigun(remeber to always by ammo--------P.S switch weapons with "Q" and "E"
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