I like the kinda ranking system of the monster names (Sargent, General etc, ...) we should have it reflect the real army ranks. Sergent is somewhere in the middle of a the enlisted ranks, so i don't think the title of sergent it should be on a fusion monster, maybe just a lvl 5 effect monster.
We should lower the ATK some. If these cards are going to field spam, they cant be beat-sticks too, it seems unrealistic.
Legionary grand Marshall
Level 8 fusion earth warrior effect
One level 7 or higher 'legionary' monster + one 'legionary' monster + one earth warrior
( to lazy to copy paist the contact fusion crap)
Once per turn you can summon one level 5 or lower earth warrior from your deck and if you do you can summon one level 4 or lower 'legionary' monster from your hand or grave. If this card or another 'legionary' monster you control destroys an opponent's monster by battle you can activate one of these effects
add one 'legionary' monster from your deck or banished to your hand
summon one level 4 or lower 'legionary' monster from your hand or grave
* destroy one card your opponent controls
ATK 2900 DEF 2450
this card should either havea higher level or a lower level on the fusion cost. The reason is because right now, its a level is 8, and the first requirement is a level 7 or higher monster. so that's already only a level lower than the monster its summoning, and Legionary General has only 300 less atk and a similar effect.