Alrighty, let's check out some CSs. 

@Stephen: You're good.

@Night: Can you use the established skills? I've included potential replacements below. Other than that, you're good.

Gunsmith = Mechanics
Espionage = Sabotage/Sleight/Disguise all seem to work, potentially.
Quickdraw = No skill covers it (Marksman and Sleight come close, maybe), but a beefed up AGI might. Or a perk. Probably a perk.
Lockpicking = Security

Also, for future reference, dual wielding doesn't necessarily require a perk unless you're dual wielding something that requires more than one hand/particularly absurd (even then if it stretches the imagination too much I'll nix it). So feel free to swap that out if you want. 

@Yuki: Tactician?

Other than that, there's only a few nitpicky details on my end. Really just the bit about a creature changing race, but then again there exist widely accessible ways to change [i]appearance[/i] so I don't think the change aspect is too far-fetched, just the method in particular. Though I suppose I can let that slide if you really want it that way.

EDIT: Oh hey, someone else!

@Moxy: You've got 29/30 of your points. Other than that, welcome aboard.

Will edit OP later.