shottie, magnum, sniper. another magnum on sheva is the best option.
landmines are useful for very many areas when you know the specific path of something, like the licker area after the temple where you need to push the dumpster.
Most areas have a special trick to solving it easily. Remember, professional is about beating the game, not getting money or killing enemies.
If you wanna do it without infinite ammo, I've been able to beat most parts with the strong sniper rifle, land mines and nades.









