Doom 4 (2016) Campaign/ Gameplay Walkthrough 2/ Resource Operations [Written Commentary]
Timestamp 1:07 : Olivia Pierce cut-scene
Timestamp 24:16 - Dr. Samuel Hayden cut-scene
Doom slayer gets entry into Res Ops facility of the UAC. As soon as he restores facility power he gets to see a message from Olivia pierce (A senior UAC employee) revealing her plan for world domination with the help of demons.
Timestamp 1:07 : Olivia Pierce cut-scene
Now the Doom Marine's next job is to get access to satellite array and realign Resource Ops satellite. After completion of the mission he gets a message from Dr. Samuel Hayden to come to VEGA Terminal.
(VEGA is a highly advanced AI that operates every day to day operations of the UAC)
Doomguy finds his way to the VEGA terminal where he has a direct communication with Dr. Samuel Hayden & VEGA and he gets to know the location and reason for the hell invasion.
Timestamp 24:16 - Dr. Samuel Hayden cut-scene