Ultimate battlefront

[maltron66]

First of all, I'm sorry if I have posted this in the wrong place, as this is my first thread around here.

I have been thinking of making a mod that will affect the characters of the SWB II.

So, here's my question:

Is it possible to add more characters in the game's standard sides?

For example, the Republic has the standard C.T., the engineer, the sniper, the assault C.T....

Can I add another class without replacing anything? I like the pre-existing troops, but it would be awesome if we could use a republic commando on every mission in the game too, including the campaign!