Yes. The Upgraded character will get the +1 attack bonus, although it won’t get Pierce 3.
In bot mode, Optimus Prime
, Dark Awakening gains the benefits of his faction Upgrade ability as long as the faction Upgrades on him aren’t Autobot or Quintesson.
As of this (FAQ's) writing, these are all the faction Upgrades that Optimus Prime, Dark Awakening can utilize to buff your team.
- Any Autobot Upgrade, though Noble’s Blaster also has a [G] pip
- Black Mail (Wave BFA)
- Dutch (Wave BFA)
- Subcontractor Agreement (Wave BFA)
- Valuable Contract
- Any valid Quintesson Upgrade