infinita est lux Solis 
"[@justanotherponi":](/1504675#comment_6440469
)
In my mind here's a complete list of ponies to warhammer 40k
non primarchs: celestia = emperor, derpy = saint celestine, sweetie belle = malcador, flash sentry = captain general of the custodes, shining armor = ciaphas cain
primarchs: lion el'jonson = octavia, fulgrim = rarity, perturabo = big mac, jaghatai khan = rainbow dash, leman russ = pinkamena, dorn = applejack, konrad = starlight, sanguinius = fluttershy, ferrus manus = limestone pie, angron = lightning dust, guilliman = twilight, mortarion = bon bon (because i was running out of ponies i know), magnus (best primarch) = moondancer, horus = luna, lorgar = lyra ( again, because i was running out of ponies i knew of), vulkan = sunset, corvus corax = maud pie, and alpharius omegon = apple bloom and babs seed.
as for races: griffons = orks, reformed changelings (changedlings) = eldar, non-reformed changelings = tyranids,and crystal ponies = tau, and windigos = necrons.
Heretical Inquisitor
In my mind here's a complete list of ponies to warhammer 40k
non primarchs: celestia = emperor, derpy = saint celestine, sweetie belle = malcador, flash sentry = captain general of the custodes, shining armor = ciaphas cain
primarchs: lion el'jonson = octavia, fulgrim = rarity, perturabo = big mac, jaghatai khan = rainbow dash, leman russ = pinkamena, dorn = applejack, konrad = starlight, sanguinius = fluttershy, ferrus manus = limestone pie, angron = lightning dust, guilliman = twilight, mortarion = bon bon (because i was running out of ponies i know), magnus (best primarch) = moondancer, horus = luna, lorgar = lyra ( again, because i was running out of ponies i knew of), vulkan = sunset, corvus corax = maud pie, and alpharius omegon = apple bloom and babs seed.
as for races: griffons = orks, reformed changelings (changedlings) = eldar, non-reformed changelings = tyranids,