"Nestled among the ancient ruins of the Giza Plateau on the outskirts of Cairo, the Temple of Anubis is one of many new excavations in the area. While most believe that the site is of interest for archaeological reasons, it also hides the entrance to a research facility that extends deep beneath the earth. The facility is alleged to house an artificial intelligence, but the whole truth is known only to a select few. Not even the agents of Helix Security International, who guard the facility, know what they're protecting."
There are 2 major holding points for the defense at point A. First is holding the bridge that connects the first two large indoor health packs. Then there is the on-Point defense taking advantage of the building just right of the point (defense facing the attacking spawn).
The most common hold on point B is an on-point defense with most teams using a combo of Shield tanks(Orisa, Reinhardt, or Zarya), Turrets (Bastion, Torbjorn or Symmetra) and huge burst damage heroes (Junkrat, Reaper, and Pharah.). If enemy team is using a Symmetra, try to have a Winston or Junkrat to take care of turrets or deal damage out of sight respectively.