Shooting Range

What is the maximum range you can set them to? (using dbf editors)

I set one guy to 50' but it didn't do much (if anything)

25' or something isnt it?

25 is the maximum recognised range. Anything beyond that shouldn't give them additional range (and the ability to hit shots from anywhere) so far as I know.

25 is the farthest the three-point line extends. Hence it is the maximum range.