I have never seen the 1970s original TV series (strangely enough, I recall its musical theme … I was only one year old when it was aired in the US). The TV series seemed to be a big hit at that time.
It is unlikely that the movie remake could surpass the TV series. It might be innovative in the 1970s, but the audience have seen (or even play) a lot of movies / games alike (e.g. Tom Clancy’s series of games).
And it is not the best of its genre. Firstly, there’s not much details about S.W.A.T. training, weapon or tactics. The highlighted weapon is a new tool invented by one of the team members. You would not see any brilliant tactics deployed by the team, not even from the supposed veteran and elite played by Samuel L. Jackson.
Usually, in a movie concerning a team/unit/group, you will see some description about the members. But you don’t get much in this movie, all you’ve got is a “job interview”, and no development of the characters thereafter. It is a waste of a good actor like S. L. Jackson.
The advertisement of S.W.A.T. compares it with Training Day. There is no match at all: Training Day is soooOOO much better than S.W.A.T.