I like the tank, but I was unhappy with the ammunition. The original tank round felt more like an Armor Piercing round, complete with being able to hit multiple foes in a line while dealing significant damage. Great for nests, bad for mobs.
Enter the Hi-EX tank shell. This shell explodes on contact with any object, still dealing decent impact damage to the target, but exploding over a much wider area, comparable to a Hi-ex rocket.
Edit: Thanks to cartmen180 and atgc for help and improvements
Hi-EX Gif
Version 0.2