For a start, it'd protect him and other forces of his during this messy battle.
It'd require tons of warriors, with cultivation bases, but in the end, he got enough of these to run many ships already. Then he'd fill the entire ship with his warriors, release them to attack other ships around and end up expanding his collection.
Once he secured this flagship everything would roll in his favour. Hye also wanted to see what a flagship of the enemy looked like from the inside, what type of technology it used to run, and what was special about them to fire such deadly hits of spiritual bolts of power.
As he set his eyes over this ship, it came down to how to deploy his warriors. The ship was a killing machine, releasing endless streams of spiritual bolts, hitting tons of ships around all the time.