The "Hour 20" news team has requested a special match. Bring Javik into the Armax Arsenal Arena against Reaper enemies.
After completing the previously requested Reaper match, check the Combat Sim Controls in the Armax Combat Arena to read the following e-mail:
Complete a combat simulation against Reapers with Javik along as a squadmate. You are allowed another team member if you wish. The previous request from the "Hour 20" News Team required Reapers, so you have likely already used a prize to redeem them, but if not, they can be found in the silver level prizes. The other settings can be changed as you wish—since most challenges are not mutually exclusive, you could conceivably finish other arena challenges at the same time, e.g. Citadel Arena: Thermal Clip Challenge or Citadel Arena: Charity Reaper Challenge.
After completion of the simulation, check the terminal for the following e-mail: