Pin down 1 enemy by a tree.
Pin down 5 enemies by a tree.
Pin down 10 enemies by a tree.
Resupply 500 ammo
Resupply 5000 ammo
Resupply 20 000 ammo
Heal 500 damage
Heal 5000 damage
Heal 20 000 damage
Kill 50 enemies
Kill 500 enemies
Kill 2500 enemies
Destroy 5 buildings
Destroy 25 buildings
Destroy 100 buildings
Deal 1000 damage
Deal 10 000 damage
Deal 100 000 damage
Get killed by an explosion 5 times
Get killed by an explosion 25 times
Get killed by an explosion 100 times
Kill 25 enemies with a grenade
Kill 100 enemies with a grenade
Kill 5 enemies with a grenade at once
Get shot to death 50 times
Get shot to death 500 times
Get shot to death 1000 times
Reload guns 50 times
Reload guns 250 times
Reload guns 1000 times
Get stabbed 5 times
Get stabbed 50 times
Get stabbed 200 times
Get pinned down by a tree 5 times
Get pinned down by a tree 15 times
Get pinned down by a tree 25 times
Complete the game
Good question