Battle Islands: Commanders

To complete this achievement you only need to beat the five training missions. This can be done in roughly 5 to 10 minutes of starting the game. it won't let you do very much of anything else other than training when you start the game so this achievement is basically handed to you just for trying the game for a few minutes. Heres a clip of my last training mission and the reward. Once I recieved crate and entered the lobby the achievement popped for me.

All you have to do is complete the tutorial missions to get this achievement