Thanks for your service. We are grateful for your selfless courage in responding to the country's call. I hope you are getting all the treatment you need.
You may not need a special lease. The Texas Property Code and most standard leases comply with Federal Law which states that military orders for relocation are sufficient to terminate a lease (after 30 day notice). I might add that, although you didn't mention your family size, sometimes an apartment is a better short term solution.
I can introduce you to several property managers who can tell you exactly how that plays out in the real world.
Please feel free to call me at (210) 764-9403 or e-mail me at email@example.com.
Doc Stephens, REALTOR
Please give me a call and God Bless