Collects Halo: Initiation #1-#3 (Dark Horse, 2013 Series) and Halo: Escalation #1-#12 (Dark Horse, 2013 Series)
- Parts of this issue are reprinted:
- from Halo: Escalation (Dark Horse, 2013 series) #1 (December 2013)
- from Halo: Initiation (Dark Horse, 2013 series) #1 (August 2013)
- from Halo: Escalation (Dark Horse, 2013 series) #2 (January 2014)
- from Halo: Initiation (Dark Horse, 2013 series) #3 (October 2013)
- from Halo: Escalation (Dark Horse, 2013 series) #3 (February 2014), #4 (March 2014), #5 (April 2014), #6 (May 2014), #8 (July 2014), #9 (August 2014), #10 (September 2014), #11 (October 2014), #12 (November 2014)
- in Halo: Initiation and Escalation (Dark Horse, 2022 series) (October 2022), (October 2022)