Is Battles of the Forgotten Cyprus in HD broken?

When i start the campaign, Limassol and Isaac immediately start asking for resources to make an alliance.
Sometimes the game doesnt return my English army, or takes its sweet sweet time to.
The most problematic is that Limassol builds an sizeable army of Light cav that, even garrisoning as many pikes i can produce, i cant possibly match, and thus i cannot retake the castles.
I know there's a mod that fixes it, but there's no other non-cheating way to do it? I just want my achievement ;_;