GR-UK writes: "Floods of troops scurry through the rubble-filled carcasses of buildings. Snipers peek out of windows tracking down potential victims. Smoke grenades provide life saving cover for waves of soldiers to advance (relatively) unmolested. Every uneven bump or crater becomes a place to lay prone, providing a safer spot from which to survey the battlefield and plan the next move. Cover - glorious cover - provides respite as objectives are neared and the ferocity of gunfire increases."