Hondo is training a new S.W.A.T team to kick ass and take names. But like any new recruit to an elite unit, they have much to learn. Through relentless practice and physical education, the team will eventually become a seamless fighting force.
This is a pretty standard training montage. The team starts out badly, draws the criticism of their mentor, and progressively gets better through several cut scenes. It's fast paced, but lacks any sort of memorable repetition so the overall montage feels more disjointed than it should.