Humans require some advanced technology to give them some advantage over the other species' since they have much more power and strength in some departments. For example, vampires are immortal unless you put a stake through their heart, so guns and explosives wouldn't work.
The weapons humans possess are listed under species lore. They mainly possess limited weaponry that will directly harm the other speicies' as they are aware of their weaknesses. They also possess some guns, but these are rare, and swords/knives.
As for the technology aspect, it is set in the time of Camelot, so anything available at that time, will be available in this roleplay. Basically, very little. I am just allowing the guns to give the humans some advantage.