That kind of training is awfully outdated, and on top of that pretty much ignorant of actual historical infantry missions. Aggressive actions are sometimes called for, but that's extremely rare in comparison to what infantry does during war overall.
I'd emphasize self-discipline (especially patience, thoroughness in camouflage and observation) and elusiveness instead - even and especially for offensive purposes.
These traits are required for vehicle crews as well, and it's more difficult for them since their vehicle's size makes it more difficult to meet the requirements.
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