Destroy 70 tanks in battle.
Destroy 50 tanks in battle.
Complete 10 levels.
Destroy 30 tanks in battle.
Destroy 20 tanks in battle.
Destroy 10 tanks in battle.
Die for the 1st time.
Get gold ranking on any level.
Get silver ranking on any level.
Destroy your first tank in battle.
Complete 20 levels.
Complete 30 levels
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