Hi Crazylife,
There's no full version yet. I am going to release it on Steam once it's finished - but it still two versions away from release quality.
We can give access to the full beta version, if you do beta testing and provide feedback
Hi Jamfanli,
The next version will have new story line art work, more types of enemy characters, elite troops, enemy boss character, end game art work, possibly redesigned sniper and auto skill improvements. Also, possibly new vocals for all characters.
I have the shotgun on my todo list, but it won't be in the next version. I have to limit the amount of new features in each release for stability.