I'm pretty sure today is not the only day. I'm 95% sure you could get the mission forever

I personally like the idea of new XT items, I think they look wicked awesome, but I would also appreciate it if you could rent it. Like a kit that's only available for 48 hrs. You could rent it from Third Lieutenant for only 24 hrs. THIS IS A SUGGESTION. It would be really nice if you could add it to the game. Other than that, they look really cool. GREAT JOB TANK-I!!! :D