That's not true.
It depends on the Tier and what modifiers they choose.
Other factors like the score multiplier.
Full disclosure, I thought it was like you said... until this morning.
I helped 2 people do some reqs for Guardain rank... they needed Match Game, No starting Ammo... and a Pinnacle.
I got drops... +1 & +2s... I was 100 over both of them.
This does change in Conquests and GMs (I think) because Fireteam Power shuts off.
I consider myself pretty clued in, but a lot of this stuff is confusing and poorly explained.
TLDR, in most content the lower powered Guardians get bumped to -5 where the highest is.
Then either you host, or they do... make sure the highest person sees B+ as a projection, then everyone will get drops.
Hope this helps.
You'll also get tiered drops appropriate to your level and your multiplier.
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