Here, this is from 1d4chan:
Rite of War: The Long March - An aggressive rite that changes the rules the models gain based upon their position on the battlefield, allowing you to get the best out of your units as long as you keep them in the right places, though it compels you to take the fight directly to the enemy and fight in his half of the table.
Relentless March: Infantry units gain a special rule depending on where they begin each turn on the table. They gain Relentless in their own deployment zone, Fleet in No Man's Land and Crusader in the enemy deployment zone.
Clearly the intent is to get you to move your units forward, any Emperors Children player will tell you that Crusader in 30k is fantastic for melee units, and having fleet in the middle of the table helps you get there earlier. Relentless is also great for your heavy units you keep in the back field allowing you to move them freely and still fire their weapons to full effect.
The Warmaster's Portion: on the first turn, your units in the detachment reroll to-hit rolls of 1, in addition vanilla Legion Terminators become non-Compulsory troops choices.
- Getting Terminators as Troops is always good when you're trying to form an elite force.
- This rite can only be taken by "Traitors" and cannot be used in conjunction with the Shattered Legion rules
- The army cannot include units with the Slow & Purposeful rule, unless they arrive via deep strike or start the game inside a transport vehicle.
'Not really a problem since we can deepstrike our terminators in dreadclaws. Though it does get expensive if we go armor heavy, or start running Horus/Abbaddon terminator stars.
- You may not take a Fortification or and Allied detachment.
https://1d4chan.org/wiki/Warhammer_40,000/Tactics/Space_Marine_Legion_List_%2830k%29#XVI_Legion:_Sons_of_Horus.2FLuna_Wolves
Also, it is Rite of War, not right of war. I have seen that error a few times now, and it is annoying the hell out of me