1- v3x made a grenade sack plugin. I thought you can do it with something like that. It's DeathMatch and more grenades means mor death ;)
2- I looked at csdm.cfg for that; but I couldn't find something like that. Maybe I missed it.
3- I wrote it; because it's needed for fourth request. It doesn't mean anything alone.
4- b,c,d and e will need lots changes; but you can make a grenade-only mode or something like that.