Both of them snipers that between them they made over 600 kills which is a insane archivement
for just using rifles, an umbrella and a lot of patience
you can read the whole history down here 
if you have something interesting to share about these guys or more world war heroes with interesting histories do it below : )
see ya folks
why an umbrella??? well this can solve your doubts:
Also why not suggesting the umbrella as a special bonus?? : ) like, You could Buy the umbrella and use it as cammo and depending the map it Will change it’s appereance to make it more usefull
Excellent fighters)
Darkflow usually picks less known heroes probably to avoid the usual war criminal accusations and also because they can just slap a random face on a guy no one heard about.
But lets hope we will get these heroes.