Eh...I think it'd be better to give you one character and allow you to solely base your interest on him. That way it gives you more a RPG feel and not just a, "Oh, I need my heavy with the goggles".
Eh, still, the point stands. In stead of investing interest into one character (which admittedly most people will probably do by instinct) itll be a whole variety of diffenet loadouts and characters that are in fact just "fit-ins" to fill certain roles when needed. One problem I have with kit games. But thats another rant. Either way I can't change what theyre doing I just know I'd prefer folks to level and rank one individual character that can truely call their own. Just me.
Another issue this presents is unlockable Tattoos.
Let say I begina character, I'm really liking him as I rank up. Then I unlock these really awesome tattoo and level 5 lets say...but I already have a tattoo on him. Not I have to start an entirely new character...not cool.
I hate being stuck basing my focus on one guy because I create a very deep mindset about my characters and then when something doesn't fit him I want the option to give it to someone else. That's why I like party based RPGs (where you develop the whole party) sometimes. I always end up making multiple guys with none being my "main" so that I can play various ways when I'm feeling it. Being stuck with one often causes people to develop something more rounded, which may not really be the best course of action.
None of my 10 will be "fit-ins" but rather unique options for me to use. I'll have my lights, heavies, mediums, medics, engineers, soldiers, ops, resitance guys, security guys, and characters designed for multiple roles, all for options when I feel like playing a different way.
As far as tatoos being locked in, maybe if you plan on having a main you should make your first guy your "throw away" just to unlock everything with and then build your main second. I get wanting the option, but I get them not giving it to you as well.