Agreed. I haven't been able to kill any tanks with the B25h. I looked up the gun it has, it seems to have very bad armor penetration values.
To kill a tank with the 75mm cannon on the B-25H, you have to be relatively close in when firing.
Firing from ranges of 600 yards or close, I can take out a panzer with a single shot. Usually coming in from the side or the rear gives a greater chance of the one shot kill but I've been able to take out a panzer with shots to the front but again, only at close ranges. Same with the T-34 and Tiger, have to be close in and mainly go for the rear engine compartment and not once have any of those hits killed a T-34 or Tiger with a single shot unless they've already been damaged. Usually it takes about 3-4 rounds to the rear engine of a T-34 or Tiger to kill it with the 75mm.
Unless TrueKill can produce a film him killing undamaged Tigers with one shot, I'm going to have to say it's a typical generalized over exaggeration on his part.
ack-ack