22 Mar 2015 22 Mar 2015 22 Mar 2015
All of the other solutions posted here are good; I just wanted to clarify two pieces of information for people looking to get this as quickly as possible.
1. Load the level Covenant on Easy at Rally Point Charlie, then drive to just before the spot where the Hornets are dropped off.
2. Once you get into the Hornet fly straight up to the spot shown in the other solutions. You DO NOT need to destroy the Scarabs or anything else for that matter.