The enemy's incredibly generous with grenades at that point, and that's where grenade launchers are introduced, so in my case the sandbag cover didn't last long.
Grenade launcher ? I hated it. Don't know how to aim. Didn't bother to learn too
I fought using the pistol until I got really close to the machine gun hut, and switched to SMG/LMG. The developers will be mad at me if they find out I skimmed through their beloved game.
I'm probably gonna play through on Easy mode and look more for technical stuff.
I'm more impressed by the multiplayer levels. The train level, the mecha level and the Palace rush are probably my favorites. The desert is nice too, right after these 3.