we got onto the stat tangent when you did not think we should use averages in analyzing lunar attacks. for die roll enough rolls will make probability of rolls and average of rolls same.
BFG is step child to 40k. the fluff of 40k will be the fluff of BFG. how eldar appears will be how eldar will presents in BFG. fast and agile are the eldar in 40k. fast vehicles, fleet of foot, toughness 3.
MSM gives them double move, up to 60cm. that is fast compared to the standard fleets. maybe not super fast but fast enough. slaughters are blunt. you blow ahead with them and shoot. eldar fly up shoot and fly away. i am fine with that.
scenario:
yup, blow in, blow shit up, blow away with victory. i have no problem with that realism wise. it may not be fun for the player who got hit. since it is a game, it should be fun for all. but if the scenario is not fun, how is that a problem with game mechanics? especially when all fleets have the options to do it, perhaps not equally well. realistic but not fun. that is a problem with the scenario, not it's realism. in real life some armies are better on the open field. you face them in the open you lose. fait accompli. so you fight them in terrain and win. you cannot always choose your field of battle. this is realism. again that some scenario favor some faction for a game is more a problem of the scenario than the game.
my comment regarding realism is that scenarios do not take into account the strategic consideration of the tremendous resources each ship represent beyond victory points. ot is not realistic is the idea that any fleet commander would be suicidal with his ship. and it is not realistic that all faction would fight on any battlefield. it would be better for terrain selection is included in scenario selection based on fleets in play.
these are all scenario issues, not mechanic issues.
asymmetrical warfare. (they were raised to fight a technologically superior race, the necron. head on they cannot win. they adapted by applying asymmetrical tactics of hit and run. fluffly. characterful)
use terrain to maximize your strength, minimize your weakness. complements above. characterful.
it is late and if i am repeating myself i apologize. i think msm is characterful for all the reasons i have listed. i haven't seen anything here otherwise.
is it different from core mechanics? yes. to me this make it characterful.
does it force playing with and playing against eldar differently than other factions? yes. this is characterful.
does it give a different feel to the eldar faction? yes. characterful.
is it broken and create an unbeatable faction? no. it does not.
btw, i have never commented on the merits of MMS.