Not getting Mythical Real Time Strategist

[Dinosaureses]

I'm not getting the Mythical Real Time Strategist achievement... I've met all the requirements, I've done all
campaign missions on Nightmare (Including Glitterhelm and City in the Cliffs). I've also done three of the
Eternia Shards maps (Mistymire, Aquanos, and Sky City). Can someone explain this to me? Or is there
something I'm missing, I've read the Wiki and checked my stats a few times.. On a side note, I saw the new
Anniversary Defender achievement! Yay!

[TryGarde]

When the achievement came out, Sky City wasn't out yet, so it's Misty, Moraggo, and Aquanos

[kc7zzv]

1) Have you hosted a game? You can earn achievements when other people are hosting, but you can't be awarded achievements unless you are hosting. Try hosting a game, and with luck you'll get it a few seconds after you enter the tavern.
2) If that doesn't work, try looking at your stats by going to the tavern crystal and pressing "f". Then check each mission to make sure you got the RTS award on that mission. Maybe you accidentally built did damage with a reflect wall?

[Rageamok]

as said above, Moraggo is one of the maps that you need RTS on to get the achievement, so you haven't quite completed all of the criteria, but it's good to check all of the maps to see if you have been given the RTS award for each mission

you need the original 13 maps (Deeper Well to Glitterhelm)
City in the Cliffs
Mistymire
Moraggo
Aquanos

yeah, unfortunately the achievement doesn't say which 3 are required, but there were only 3 eternia maps present in the game when the achievement came out