Re: How do some players have the Buster sword from jump?

There are two swords here as well, which may be accounting for some of the confusion.

The Buster Sword R2R5 is the sword that's looted in-game when playing the event mode. This is the one you can see in the red beams of light from drop, in care packages, etc.

This is also the only one that has the combat abilities.

The other sword is the similar Buster Sword R5, which is cosmetic only, obtained randomly through the event packs, and can be used on any character. If you're seeing people landing with a Buster Sword (not just landing ON one and looting it), it's this one.

The article here has a bit more info /images about both: Apex Legends™ & FINAL FANTASY™ VII REBIRTH Event (ea.com)