Wallbang?
Yes, that's right!
It was a wallbang!
However, it was only a wallbang due to the system's
Normally, in the game, as long as a player managed to get behind a wall, a Frag Grenade would not be able to damage them.
However, the Frag Grenade hit at a radius. Hence, not only could it deal horizontal hits, but it could also deal vertical hits. In that current version of the game, for the Frag Grenade's hitreg mechanic, its horizontal damage had a certain level of wall penetration.
Especially in a place like that kind of building, if a player were to toss a Frag Grenade on the second floor, the impact could be felt on the bottom floor. This was something the game did not tell players.
In other words, this game still had a lot of hidden mechanics that was not known to the public.