Quick respawn always works great on slayer weapons so this gear takes that as it's main selling point.
Swim speed is great on almost any weapon, helps you get back out on the map faster, escape bad situations and be aggressive.
Special power up is there solely for inkjet purposes, it explains itself.
Finally a sub of special saver so you don't lose a lot of that precious special charge when you respawn.
This set works mainly for solo, that's why it doesn't include comeback, stealth jump or quick super jump since in my opinion those abilities work best on a team setting and as we all know solo is the furthest thing from a coordinated team.