Everytime my arrows hit something on a medium range they just go through the body. I already tried this command:
[Actor]
fVisibleNavmeshMoveDist=14000.0000

http://imgur.com/4j2GH

http://imgur.com/lCMcJ

http://imgur.com/H5DLp

edit: found the solution with this other command fLODFadeOutMultActors