Command HQ in Dark trees (realm 2) is level 14 (max level), in Falar (realm 2) - it is level 10 and also is at the max level.
It should be possible to be upgraded to level 14 as well, as two castles are of one and the same tier.
And after fixing the problem, would you be so kind to give a formula about upgrades of the Command HQ's across all the tiers.
Thanks in advance.
Pith