What's the most recent V40k? The server connections window in vassal shows the vast majority of people using vassal at all, for anything, are playing v40k 5.2.
It can't really be modelled on the Tabletop due to A: meta knowledge and B: that would require Eldar players to be actual real life tactical geniuses.
I slaughtered IG once with a loldar jetbike army by luring them out of cover with
MY AWESOME DISPLAY OF AWESOMENESS obnoxious bullshit that pissed the other player off enough that he abandoned his trench and charged at me across open ground.
Never did like Space Marines, they're just so... bland and generic.
You can see this clearly in the tournaments, where the Muhreens consistantly come in the top 3, and usually win. The other races all dance around a bit, with the exceptions of the Dark Eldar and the Toasters who routinely come somewhere at the bottom, but the Muhreens are always at the top.
Isn't that because 99% of players use Space Maroons exclusively? So, statistically, they're more likely to end up in the top just because of volume.
I mean, I've only seen them used competently once, on a map that fucked over my main advantage (lots of cover for them, making my heavy weapons drastically less useful; also left my infantry swarm jammed into a small area, with no line of sight or fire, allowing the fucker to deepstrike a dreadnought to rape them with a flamer, it also killed a good number
when it exploded the following turn when I countered with five autocannons (five infantry squads with the optional heavy weapons, all grouped into one cluster to take advantage of orders)), and even there I did a lot of damage, wiping out one side of their advance with the two heavy weapon teams who had a clear shot.
Fuck, I've got to find some time to play a game or two now...