overall, it is a good idea, and that is what every hero is based on
just so you know, at the top of every section there are rules and stickys,
like this one
http://forums.alliedmods.net/showthread.php?t=30352
when you post a hero idea, be creative use pictures format it nice, people will look at it more seriously
also look at this one
http://forums.alliedmods.net/showthread.php?t=30353
if you could find a model, post that as well, it might help somone help you make it