The rest of the missions in which Alex almost lost his life were just a piece of cake in comparison to the evil which awaits him now. The beta players could be of great use in the later stages so saving them would not be a bad idea after all. Alex’s friends have betrayed him in the past and trusting them is quite tough now.
However, all of them were not traitors so Alex has to choose a few if he wants to survive in the big war. First Alex must reach the inferno and then he has to destroy the core after which he would be able to make his enemy kneel down in front of him. His enemies have also joined hands so the mission would not be very easy at all.