If the unit is preplaced in your map, you can (press esc. first for free selection) double click the unit and go to the "Drops Items" or whatsoever it's called.
From there you can add tables, and when adding items to the tables you can see the % chance to drop at the topleft side of that window.
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If you wanna do it from the trigger side, do something like (freehand):
Trigger:
Events -> A unit dies
Conditions -> Unit-type of Dying unit equal to <your unit>
Actions -> If Random number between 1 and 100 is less than or equal to 25, then do "Create <item> at (Dying unit)'s location" else do "Do nothing".
It's free hand, but you can find the random number condition at "Math".
I think we need to add something to the bottom of the front page that shows the Headline News forum that has a link to go to the News Forum Index so people can see there is more news. Do you guys see what I am saying, lets say you read all the articles on the front page and you get to the end and it just ends, no kind of link for MOAR!
Finally finding about some of the bots that are flooding the users online - bytespider apparently is a huge offender here - ignores robots.txt and comes in from a ton of different IPs
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.