Me and a friend are playing Borderlands 2 on an XBox 360 and we're about halfway through completing True Vault Hunter Mode. Of course, we're level-capped at level 50 and the only real benefit of completing True Vault Hunter Mode is loot.
We are wondering if we need to complete True Vault Hunter Mode in order to get the Ultimate Vault Hunter Mode packs 1 and 2 installed. I can't seem to figure this out through the relevant websites or through this thread on Arqade, where the OP asks specifically whether installing the DLC packs will mess up their True Vault Hunter mode progress, yet no answer is provided.