|⦵⦵⦵⦵ Hardware the Tech|
Start working on another faction, currently. There is currently no reason to go higher with a single faction.
Last time Thursty was asked this question, he said that there is no plan at this time to add rewards for reputation beyond Tier 4 (45 reputation) with any given faction.
Also, congratz on hitting Tier 4 with the Acquisitives!