Just finished the imperial campaign and noticed theres an achievement called thorough spirit for doing all the secondary arcs, yet i did everything and didnt get it, or does it count siding with the different factions as different arcs? theres also an achievement for unlocking all upgrades which i couldnt get, i ahd all but 1 and my renown was capped leading me to believe there is perhaps a secondary arc that i somehow missed that would have rewarded a bonus upgrade.
i saved the craftworld and sided with the eldar,
i sided with osmadiel or whatever his name was, and didnt get any further missions to do with him, though he came in and "helped" in the final battle.
I destroyed the necron planet thing
I killed the tyranid ancient one.
I killed the orc leader
I got the macragges honor
I did literally everything that was presented to me all the was left was to do the final battle so have i somehow missed something?