Love it you should try to make a full version
like it says up top man you should try to make a full version game...although it would take some time I'm sure but you know a couple missions at the time, although you should make it somewhat unique. You know your own rather than mimic something someone else has already made...but seeing as you can't make it futuristic (starcraft) or modern day (command and conquer) you will have some trouble...a pirite-ish one would be cool...but that's just me, either way great job and all the whiners need to STFU.
Oh also some background music would be cool, but that's just something minor