Violence of Action. Making fast decisions, getting off the X quickly, and fixing and flanking their enemy were all critical to the success of these men. Violence of action is the difference between life and death in a fight. The following two videos are excellent depictions of fire and maneuver, a topic among many we will be covering in the Fieldcraft Course.
This first video is squad size fire and maneuver done correctly. Note how Lt. Winters deploys his men into two groups, one as a base of fire, and one as a flanking element. That is text book stuff there. But also note as the assault develops these elements begin firing and maneuvering on there own as well, using their own individual initiative to assault the enemy when it was the right time. That’s Violence of Action.

The next video depicts a larger force, this time with combined arms, but they still are utilizing the same tactics. Note what happens when the commandos get bogged down, and note what happens when they pick up the assault again after being reinforced.
Also note how they do not engage in what we would consider CQB even though they were fighting amongst buildings. As NCScout has explained before, CQB and building clearing is a security force tactic. A true assault bypasses these strong points, lest they get bogged down and it turn into a stand off, and deals with them the best way they can; in this example with mortars, grenades, flame, and lots of rifle fire.