CS:CZ offline

I have recently picked up a copy of Counter Strike: Condition Zero in a bargin bucket. Playing the offline bot version, managed to get all the way to Advanced level on the Chateau map which I have been stuck on for 2 weeks

Anybody got any tips? Trying to cap three t's with that cr4ppy machine gun, flashbang and kill a t and also kill 10 t's and stay alive until the end of the round, man it's hard. This is all when the t's seem to be able to pull off head shots using an AK when they are a dot on the horizon, lol.

Current strategy is to start with a magnum, kill all the t's so that I get a few rounds under my belt, then go for the cr4ppy machine gun task. Then I start losing, can't get enough money to get decent gear and you know the rest...