Mordred ignored the newcomer, he had been busy crunching numbers. The variant of plasma grenade he held was designed for high yield low collateral, meaning it produced more plasma upon detonation with less of a shockwave. The maximum radius of effective damage was a little under 5 feet from the epicenter. He figured he could land it 4 feet in front of the sentry bots, dealing massive structural as well as electronic damage to them and still not destroy anything beyond them.
"You may want to back up, Phoenix," he said, removing the pin of the grenade,"Shiny, you're on point the moment this goes off, don't worry, I'll be right behind you."
Mordred pressed the primer button for the plasma grenade now that he had removed the safety pin, tossed it up in the air to cook it off, caught it, and backhand-threw it against the opposite corner into the midst of the 2 sentry bots.
He prayed his calculations were correct.