Soldier Elite

When another two or more shots were fired they started to shoot back, I thought that this was the end but they ran away so i could live another day. Like 10 minutes late a tank drives by and i see 20 people with that tank. I took my grenade and threw it at the tank...nothing! i only killed 5 people. a shot...BOOM, 2 of my soldiers died. the commander is still alive tho.