Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Aim Master	Rescue Elizabeth using only tanks.
Battle city	Beat the first arena.
Blade master	Kill fifty vehicles using Mech's sword.
Completion	Found all fourteen upgrade gears.
Flame master	Kill fifty vehicles using the flamethrower.
Hammer master	Kill fifty vehicles using Gatling's hammer.
Ramming master	Kill fifty vehicles using the ramming plough.
Survival master	Beat the survival mode in 45 seconds or less.
The arenas	Beat all four final arenas.
The battlefield	Help your allied army win their battle.
The discovery	Access the water area in the first level.
The duel	Beat the final boss.
You only live once	Kill fifty vehicles using drivers.