Vanguard Action Squad

The Vanguard Action Squad (開闢行動隊) is a group of ten elite villains who were newly recruited to the League of Villains. On their first mission, invaded the Beast's Forest and attacked U.A. High School students. They serve as the main antagonists of the Forest Training Camp Arc.

History
The Vanguard Action Squad was created shortly after the Hero Killer inspired various criminals hiding behind the scenes to join the League of Villains. Many of them were recruited by Giran, including the original two recruits, Dabi and Himiko Toga.

Several other criminals followed suit, and eventually, Tomura Shigaraki formed the Vanguard Action Squad with the intention of attacking students from U.A. High. Their first mission was to capture Katsuki Bakugo and destroy the image of a peaceful hero society set by U.A. and All Might.

Dabi is the defacto leader of the group, and it is comprised of ten elite villains with various powerful Quirks.

They made their first appearance when they invade the Beast's Forest belonging to the Pussycats, in order to attack the students training there. Dabi burned the forest while Mustard filled it with poison gas. This was to keep their meeting point a secret while at the same time cornering the students inside the forest.

Muscular, Moonfish and Mr. Compress were assigned the task of looking for Katsuki. Magne and Spinner fought the Pussycats in order to hold them off from protecting the students. Nomu was released to incite chaos, Mustard maintained the cloud of toxic gas, and Himiko was tasked with collected three different blood samples. Dabi and Twice would distract Eraserhead and Vlad King with clones of Dabi.

Moonfish, Muscular and Mustard were all ultimately defeated by the students. Mr. Compress successfully captures Katsuki and brings him to the rendezvous point. After a battle with the students, Kurogiri retrieved the conscious villains and warped them to safety.

Strength
The Vanguard Action Squad has been noted to be comprised of elite supervillains as opposed to the weaker criminals used to invade the U.S.J facility. Dabi alone was able to keep Eraserhead and Vlad King, two talented Pro-Heroes with extensive combat prowess, distracted long enough for the mission to finish. The villainous team greatly injured half of the Pussycats and many of the students from both Class 1-A and B. The succeeded in their mission to capture Katsuki and managed to escape with only a few casualties.