Tank Battles
13 Achievements
PS3
One-Tank Army
Clear the game campaign mode in solo.
4.3%
How to unlock the One-Tank Army achievement in Tank Battles - Definitive Guide
castlehominid99
Simple. Just beat the campaign in solo. If you get stuck at any point there are some guides on different sites that may help you. I'm sorry to say this but actually it is better to rush sometimes in this game than to stay back and wait and be patient.