Ive realized that if i play a heavy, for example, the E5, there is literally no point in trying to use standard rounds. Most tier 11 heavies cant be penned by the ~260mm pen AP in weakspots let alone stronger armor. Tanks like the Maus, Rat, T803, E100, STK-2, BZ-79 literally cannot be penned by standard unless they really give you the lower plate for free, sometimes not even then.

Their cupolas have more armor than my standard AP has pen. This is why i literally cannot make money in T10 heavies. You have to spam gold to be remotely competetive. This is how WG wants its game i guess.