use the Air Strike with it. you'll know why it exists.
Actually, it works well with the Black Box as a substitute to Gunboats, since 2*15 = 30 and a standard rocket jump costs 39-41 HP, you actually end up with more HP than just relying on the Gunboats (assuming you only hit one person with each rocket), while the BASE Jumper helps negate fall damage and can assist you in getting to places with one or two rockets where you'd otherwise require more. I did
my week 51 update using this combination. I do prefer Black Box + Concheror still (in pubs, anyway), but I feel that it's a nice combination.
Still, the Air Strike with the BASE Jumper is also pretty awesome, but it requires a lot more aim and patience than I have. 15% reduced splash radius doesn't seem like much, but it's gotten me killed quite a few times. I'd need to get used to it, I think. I guess Direct Hit mains might do a bit better with it than I did.
I haven't even found any new weapons or new taunts :(
I crafted all of the new weapons and unboxed three Jarate reskins and two Mad Milk reskins. I then traded the extras for the ones I was missing as well as a Bread Box, which gave me a strange Jarate reskin.
I also crafted the #30 Frymaster, which I sold for 6 keys. That was nice.