Any Sphere 'Mech that wants to bring two UAC/10s and two UAC/5s (i.e. the Galactic Standard Armament for modern Clan dakka) needs to either put a cannon in each arm instead of concentrating them into the torso, or it needs to do it with a standard engine.
Even if it's fine with the STD, the Sphere dakkaboat can only fit seven tons of ammo into non-arms. It's almost certain to go 50kph or less and is going to be sharply ammo-limited. You get
slightly better if you drop to standard autocannons instead, but you still get no room for an LFE and no room for both Endo and Ferro.
The
Bad Touch Bear gets four Ultras in high torso mounts with thirteen tons of non-arm ammunition, Endo
and Ferro, the ability to get up to 60kph with five engine-mounted heat sinks, and it still has two slots and one ton left to do dumb junk like put a flamer in each fist for close-quarters brawl memes and shutting down idiots trying to press you. It's significantly faster than equivalent Sphere dakka, it doesn't have to sacrifice any significant armor, it's got
scads of ammo.
Is it less durable than a Fatlas? Yes. It damn well better be, Fatlas is fat and has nothing else whatsoever going for it.
Is it less dangerous than a quad LB/X Annihilator? I don't honestly think so. It's not nearly as powerful in close, no, but it's also fifteen kph faster and has better reach than the Annihilator, generally has better ammo reserves, and two of its guns aren't in Easy Pop-Off Arms. Gojira will beat the Bad Touch Bear in the sort of fight Gojira is looking for, yes, but Gojira beats
everything in that sort of fight. The Brodiak stands a decent chance of not getting caught in that fight with its vastly better weapon mounts and mobility.
Is the BTB less dangerous than any Fatnir, or
any sub-100t Sphere dakkaboat? Naw. Not at all.
The Bad Touch Bear is fine. It's not crushingly uberdominant anymore, no, but it really shouldn't be, ne?