Help this little noob out plz

On monday i picked up halo 5 40% off the original price. I already had halo mcc and guardians beta ( which i completed both 100% because i used to be a huge fan until my xbox stopped working in august. Fast forward to january its fixed). Therefore, should i be able to receive any extra unlocks in halo 5 multiplayer?

If you complete all 4 campaign legendary no skulls ( i think) in the MCC you can unlock the helioskrill (Original). You should also receive the Mark VI [GEN 1] and its scarred counterpart.

If you complete the MCC on Legendary, you get Helioskrill. If you watch all the episodes of Nightfall, you get the Nightfall armor set. If you play certain levels on H2A, you get Mark VI and the scarred variant.

If you played the first mission of H1/H2 you get Mark VI and Mark VI Scarred. If you beat all campaigns legendary you get Helioskrill.

Pretty much what these guys have been saying.

dang i only beat the campaigns on heroic even the ODSt campaign

Ok thx I’ve done all that and now got my unlocks