If you are planning on running a public Hitmen server

You will need to use the Enhanced Server files (kpded2.exe) 

http://download.kingpin.info/index.php?dir=&search=kpded2&search_mode=f

By using the Enhanced Server files it means clients will be able to download the Hitmen client files from the server. The client files are in pak1 and contain the grappling hook files, the custom Hitmen console background and the binds.cfg file.

You will need to add the following lines to your Hitmen server.cfg file

addcvarcheck hitmenver !* STUFF exec binds.cfg
setclientfiles autoexec.cfg.readme.txt

The first command tells the client to exec the binds.cfg so the hook will work and the second command tells the client to d/l the autoexec.cfg.readme (which is included in the Hitmen server files zip).

The autoexec.cfg.readme is for players who don't want to use the default keys for the hook. They can change the keys to the ones they want and then rename the autoexec.cfg.readme to just autoexec.cfg and that will override the binds.cfg