The final Artillery related achievement--it is the longest and I would highly recommend trying out as many different Artillery as you can to get a good taste of variety and see if you want to work through any other Artillery tank trees.
This achievement itself is quite easy, just time-consuming. At time of writing, every nation except Chinese and Japanese have Tier 2 Artillery tanks. Artillery have a square by their Tier number.
Just start a game with your Artillery, if you get destroyed you can just go straight to your garage and pick another ready Artillery and play another match!