CS2D General Disable Buried items
Disable Buried items
1 
GeoB99:' solution 
drop hook and return the value as 2 to never fade out the item on the ground with return.
mp_weaponfadeout to "seconds"that you need to bury the weapon.
GeoB99' solution will make all weapons not fade out anymore. Depending on the layout of your map, the used game mode and other Lua scripts, this might lead to a map full of weapons after a short time. So be careful with this and maybe limit it to some weapon types (e.g. only primary weapons). mp_weaponfadeout like script favor suggested is a safer solution. Note however that the limit is 60 seconds (1 minute). 
Offlinelocal ItemIDs = {1, 2, 3, 4, 5, 6, 10, 11, 20, 21, 22, 23, 24, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40}
function NeverFadeItem(id, iid, type, ain, a, mode, x, y)
for _, ID in pairs(ItemIDs) do
if (type == ID) then
return 2
end
end
end
addhook('drop', 'NeverFadeItem')
ItemIDstable, other items will fade regardless. You can add more item IDs though if you want them not to fade out.
1