how do yall know what set bonuses etc.. are on fire fighters set.. where ya getting the details
Each new item in game has ID greater than last one by 1000 (or baseID by 1), so to see new items added on beta every 2 weeks mondays/tuesdays you can just type next ones somewhere in private chat room or profile and wait for them to be active, or use script called Tweaker and type /items - it does that for you automatically(first time on each world won't show new items just load all from that patch) -
Setbonuses are reachable too, all of them are stored in object which you can reach by typing "west.storage.ItemSetManager._setList " in brower's console
There you can find all sets that are in the game, and what bonuses they get you when you equip 2,3,4,5,6,7,8,9 or 10 of them
Then you can run script to sum up all the bonuses of set you want and voilà! (or just wait few days till it'll be aviable on tw-calc xD)