I watched the Marseille vs Lille game yesterday and my interpretation of the way OM played that game is this:
GK- Goalkeeper/defend
DCL- Wide Centre-back/defend
DC- Central Defender/defend
DCR- Wide Centre-back/defend
WBL- Wing-back/attack
WBR- Wing-back/attack
DMCL- Defensive Midfielder/defend
DMCR- Defensive Midfielder/support
AMCL- Advanced Playmayker/support
AMCR- Attacking Midfielder/attack
ST- Deep-Lying Foward/attack
Balance + Play of defence;Shorter passing; Counter; Take short kicks; Higher LoE; Higher DLine & Marks tighter (i think it is not in the game any more)
tbh both of interpretation posted in thread (@Batigoal__ & @sonnevillejr) are very close to reality imo.