The assault rifle drones lit up, providing the necessary firepower that Team Armoury had been lacking, giving the Grey Bears on the 36th floor some breathing space as well as finally allowing them to move manoeuvre and control the battlefield.
The spider Mechanoids and scorpion Mechanoids were badly crippled by the wave of new attacks, allowing Tellie to finish them off with her sniping skills. Even using just Jin's P90 submachine gun, she was able to defeat the Mechanoids from a distance which was a testament to her ability.
However, the real deal was when she used the sniper rifle that was given to her by Old Famet. The Barrett M82 Sniper Rifle. 'Short' enough to carry around but also strong enough to finish off targets from various distances. (After all, weight was not an issue for most Mechanoids who have somewhat superhuman strength.)
