Lovely game, I love the atmosphere, the gameplay and the premise. Do you think you could add moddability / Original names for the vehicles? Asking mostly because this kind of "tank dorrkickers" would feel great if you could also play with the vehicles that the in-game ones were clearly based on (like abrams and t72). You should also think about a steam release! They take a hefty cut but You get more people to see the game, and I for one would gladly buy it!
I recently added a page up on steam where you can wishlist the game! steam workshop/mods is one of those things that I'd really want to include but it might end up being a post-release sort of thing...
As for vehicle types, I ended up not going with real tanks/weapons since I wanted to explore a different setting and come up with some designs that we don't have in real life. plus balancing would be trickier haha.
Immediately wishlisted! I understand the balancing being tricky, lots of games have tried in the end. I do hope you'll decide to spend time on proper modding integration as it helps games last a LOT longer, without the timesink of waiting until somebody finds a way to mod regardless.
That being said, please keep working on it! It has immense potential within a niche that's not covered at all!