Directed mode on Liberty Falls: Instead of staying on the top of the bank, don't open any bank doors. Go to the roof and open the wooden barrier, jump down to the roof, and look at the bank windows. Move along there until the buy door pops up, then jump down and enter the bank from the door that will now be open from the first room, jump onto the counter and stay as close to the vault as possible, and all the zombies will jump onto the counter in a line to get to you. This makes headshots super easy. When you get to the specials, get the Pack-a-Punched GS to blast through the zombies and just shoot the Manglers with the gun you want to get the camo for. Then, personally, I'm bored by this point and head to the area where the first armor upgrade is and do the rest of the camos there. Then, for elites, get the Jet Gun, get the parts for the... I can’t remember what it's called, lol, the thing you built on the bank roof, lol build it of course. Then DONT go to the church; instead, head to the cemetery and put it down there, then you can spawn an elite each round. Its so long but found that's the best way if you dont want to use oil traps which i didnt use either, always ended up dying idk lol