[David Armstrong]

The west coast SWAT uses their weapons as shields. This means they use fire as cover. For example, they bust into a room and when they see a threat they fire their weapons.

Basically, there are two styles of SWAT tactics. East coast (NYPD ESU) and West coast (LAPD SWAT).

You might want to do some pretty heavy fact checking there. LE does not use fire as cover, SWAT or no SWAT. And there is so much cross-training in the game that the tactics are pretty much universal. Different tactics for different situations, but the tactics used are not determined by your location.

There was an incident in Texas where a public official had messaged an underage woman over the internet. They had their SWAT team bust into this man's house where he then turned a gun on himself and committed suicide.

Again, you need to check your facts. The official has engaged in numerous illegal acts over the internet, refused to exit his house when ordered to do so, and shot himself before SWAT entered. Lots of details to this sort of stuff that you seem to be missing or ignoring.

The LAPD SWAT was the first-ever, and was formed in 1967.

FWIW, LAPD coined the term SWAT, but they weren't the first by far. NYPD's ESU goes back to the 1930, IIRC, and several other places had specialized squads that did SWAT-type work before LAPD.