Omega faced off against the floor boss by himself as Kahn entered in stealth. Thankfully, the fight was happening in an area with long and broad trees so there was no lack of shadows for him to hide inside using shadow walk.
Even though Omega was currently being defensive and was pushed back by the floor boss who had taken the same form as him, he still adhered to Kahn's instructions and kept the boss engaged.
Kahn on the other hand started shifting from one place to another and took a cover behind tree trunks and released the fear toxin from his hands. But he didn't stop at just one place, Khan didn't want to give the floor boss any escape route so he filled various places with his toxin mist and covered the entire area out of the battlefield in a circle.
And in this encircled area, he placed his lower tier subordinates as the six generals hid in the inner areas not far from the ongoing battle.