Actually, after a claim of 10% this meaningless stuff should be ignored completely, but okay, I will give my short answer.
Why do I need some lessons from a half-insane English lady, if I can read various sources, including Russian 'voenkors'? The only 'cunning' tactic your heroes are using is outgunning and outmanning their enemy. More bombs, more shells, more men in mainly frontal attacks. Yes, at some point, after more than two years, it is becoming to bear fruits that can give them more or less desired results, because of sheer numbers. But that doesn't avert them from being dysfunctional morons.