Armed & Dangerous. AKA Shotguns & Snipers. Wingman moved to using sniper ammo in S14, so would have been included in the available floor loot for any post-S14 play of A&D. It was BR LTM. Wingman wouldn't have been in the first edition of A&D in S5 when it was still a heavy, but it was in the S17 variant.
Do you know that they are in the mini map screen?
Fair enough. Just wanted to make sure you knew they were there somewhere in match. Totally get your request as being distinct from that.
It's a reward on the new player pass prize track. If you go into the passes menu and scroll the the prize track for the new player pass (which he will have assigned ), you'll see an image of what looks like a bot head. That's the unlock. Once he unlocks that level on the prize track, he will unlock all legends in bot royale.