I have played 7 nations in all of my experience and I can confidently list out top toxic tanks in Ground RB mid tier.
KV-1B/E: br 4.0
Toxic armour of about 100mm all round at a low br, crazy angle normalisation round, decent mobility able to keep up with panzer 4.
Can go to 4.3+
VIDAR:
We all have been laser range found and sniped from the other side of the map with this 60+mm pen HE launcher with thermal sites, so no hiding from it. 900m/s Velocity also makes it very viable. Large tin can can absorb lots of punishment due to shells overpenning.
Can go to 8.7+
Turm III:
Great mobility, gun handling, auto loader of 5s, coax 30mm and spalling in hull gets absorbed by ball turret.
Can go to 8.7+
U-SH 405:
Rocket HEAT spam, decent mobility on road. Toxicity potential is very high, but generally able to deal with. It can stay at its current br.
SAV20.12.48:
120mm 1.2s auto loader, 80+mm pen, good mobility , and the 120mm shell has 890g of TNT!
Just not at 3.7 br, I am not sure where it will be balanced.
Raketenautomat:
Basically U-SH 405 but a bit less annoying. Still quite annoying though.
Depends on one’s definition of “toxic.” I usually group toxic and “rat like” tanks together. As I’ve only played the USA (and refuse to main any others, fight me) I can list at least a few that are a bit rat like:
T114: High mobility, recoilless gun with a high pen HEAT round, and small enough to almost completely hide with bushes.
M56 Scorpion: Most of the same reasons as above, but now with APHE and an extra crew member.
Hellcats: Depending how you play these, they can be super ratty, especially after the horsepower increase. Super Hellcat is my favorite tier-for-tier.
One I don’t particularly agree or disagree with but see a lot of hate towards: HSTVL. A lot of people think this thing is toxic for its high reload rate and virtually crewless turret. But for that, I raise it to:
2S38: I mean does anything really need to be said about this that hasn’t already? Lots of people love this thing and lots more hate it. Rapid fire rate, gen 2/3 thermals, crewless turret, proxy HE round, APHE at top tier (which can be devastating if you know how to use a light tank properly).
Down at the lower BRs, the Stuart series are fairly ratty due to having low speed stabilizers and a high fire rate. I would also group the BT-5/7’s in here too as APHE at that low of a BR is just a one shot kill for almost anything it sees.
Probably more, I might come back and edit this if I can think of anything else.
After some time I started playing with the Br4.0 again, specifically with the Churchill NA75 and the concept 3. What I found toxic would be the T-34, it seems that the hull armor was modified. When I used them Tanks didn’t seem bad to me, with a bullet with 60° penetration a little absurd but with decent armor as long as you were careful since a pz4 with the 75mm cannon could kill you easily, however now I have realized that the devs They have touched something, since with the cannon of the concept 3 I have not yet been able to pierce the front of a T-34, and that penetrates more than the cannon of the pz4, apart from that the T-34 1942 has the 75mm door that It should hold much less than those 75mm.
77hv on the concept I hate, it’s so in accurate but for the penetration just shoot the turret neck or the mantlet. Won’t have random bounce issues due to angle anymore.
