To give out of the room, Beat required to unlock the game map and they are in the Kota Tua. At the least, he was not in any rescue mission since Seven was following him obediently but at the same time, he wanted Seven to take new weapons.
"Go find a new weapon that suits your killing style." If he would not let Seven go away and get out of the building they would probably be surrounded by enemies now. Anything that can kill his character would make him regret not letting Seven roam forward.
The weapons did not introduce themselves to Seven so all he did was pick them up, his bag was a starter bag and he had five yellow tokens which he did not know that he picked it up instead of the weapon. Well, he honestly thought it was a weapon. And if he asked Beat, then all he get would be a sigh. A heavy sigh.
"Seven, why are you just standing there? Go run,"