TRAT

History
T.R.A.T. or Tactical Reconnasaince and Acquisition Team is a secret Government Agency and special Ops of the military. They collaborated with S.O.R.T. on the Edward City mission, which was to rescue any survivors, retrieve the Third Energy data and bring it all back to the present time.

And the following is a description of their task from the Dino Crisis Wikia

Third Energy research continued recklessly against a research base, military institution, and a small town itself. Suddenly, Edward City, an entire town devoted to Third Energy research completely vanished, mysteriously replaced by prehistoric jungle. Now, a search and rescue to recover survivors and locate the missing Third Energy research data begins. A team identified as T.R.A.T. has been sent into another time frame, which Edward City had disappeared into. Regina, from S.O.R.T. (Secret Operations Raid Team) has been sent along due to her previous encounters with dinosaurs.

Apparently, after the first incident in Borginia involving Dr. Kirk, the humans decided that the dinosaurs were to be studied. Widespread 'Time Skewing' was carried out, with disastrous results that threatened the end of the human race when it became clear that dinosaurs and humans could not coexist. In view of these events, the military decided to transport all the dinosaurs 3 million years into the future, where they could thrive, before they were to be sent back to their own time (bef.65 million years ago) when the third energy timegate was perfect. This was the 'Noah's Ark Plan'. However, the team that transported the dinosaurs to the future suffered another overload, and the timegate was destroyed. Thus, the team was trapped with the dinosaurs. All the survivors were killed by the dinosaurs, but their children were saved and brought to the safety of the habitat support facility where they were kept in life support chambers, which protected them and allowed for growth and learning. The children learned how to survive around dinosaurs, and because of the nature of the 'Noah's Ark Plan', they were thought to protect the dinosaurs. Somehow through the teaching, they lost the ability to speak. These children are the mysterious helmet-wearing teenagers Regina and Dylan encountered throughout the game. Apparently, one of the members of the team that came to the future was Dylan himself, older. His daughter, Paula, is the blonde haired mystery girl. It appears that in the overloading incident, Edward City itself had been transported to the future.

Description
Well armored, and physically fit, the T.R.A.T. forcesmay have taken a huge dent from velociraptor ambushes, however, they are still a very strong force to be reckoned with. From military training as a special Ops unit, they have elite know-how to neutralize any threat.