1400hp, they got nerfed.
EDIT: or is that just in the balance preview? either way, the below still applies.
personally, i'm not at all bothered by the normal churchill as it's just a really fucking big damage sponge. if you accept that and build a pair of paks or have a couple of medium tanks they don't really cause problems. the avre probably needs some small nerfs as in the couple of games i've played against it it's just to hard to prevent it from firing and it doesn't have the downtime disadvantage the stgier does where it's completely vulnerable. i haven't seen the flamer yet so no comment on that one.
You don't know the horror...
Croc is so ridiculous. PaK wall won't do jack shit since it wipes them in 2 seconds. It also gains vet quit fast, and that Vet3...
One Croc and an ATG, and they can push any line. Mediums also are not that effective, because even if you flank them, and even if every single shot penetrates (which they won't) it's gonna take for ever to finish it off, and in the mean time it will wipe your vetted MGs and PAK with its deathray.
In 2s, the only counter is Elefant.