I discovered this by accident. I was able to find a way to get the baseball bat to work in both single and multiplayer games with no glitches or bugs what-so-ever. I'm not exactly sure what I did and how I got the bat to work, because I tried duplicating it, and no luck. BUT i can tell u what I did to get it working the 1st time(and maybe u can look into it ^.^" ). I noticed that once I got this mod:
http://forums.alliedmods.net/showthread.php?p=1124023
and messed with it alittle, by disabling the features that I didnt want and adding the CVARs into my server.cfg , the baseball bat WORKED(and i was testing the mod out in a multiplayer game i made,thru garena). I will try duplicating it again so that u can have more information on it. I think that it might have been something I've done OR there was some type of error/ got lucky, I dont know.