hard to kill JS-1 tanks

[stugumby]

having an incredible time trying to kill JS tanks with the HS 129B2 with 75mm gun, i either hit it to low or it just bounces off, even from the rear and diving from an angle. Kills t34 and shermans every hit. JS armor on the rear deck cant be enough to stop 75mm pak 40 AP?? I posted the mission on M4T as DE_Tank hunting last week for those that want to give it a try.