You will  be making your own characters, but they must fill roles of one of the 9 classes (Considering that those are the only ones Mann. Co supports) However, you may be trained for up to 3 different classes, which you can only use one at a time. This is the general character application:

Character Name:
Character Age:
Classes trained for(max of 3 classes):
Height:
Weight:
Looks like:
Personality:
Backstory:
Team:
Other: