If you plan on making an H2 nextbot pack then i suggest that there should be:

[UNSC]
Master Chief
Marine
ODST
Warthog
Scorpion
Pelican

[Covenant]
Arbiter
Grunt Minor
Grunt Major
Grunt Ultra
Grunt Spec Ops
Jackal Minor
Jackal Major
Jackal Sniper
Elite Minor
Elite Major
Elite Spec Ops
Elite Zealot
Elite Ultra
Elite Honor Guard
Elite Counselor
Brute Minor
Brute Captain
Brute Honor Guard
Hunter
Ghost
Spectre
Wraith
Banshee
Phantom

[Heretic]
Grunt Heretic
Grunt Heretic Heavy
Elite Heretic
Elite Heretic (Sword)
Heretic Banshee

[Flood]
Infection Form
Carrier Form
Human Combat Form
Elite Combat Form
Juggernaut
Flood Controlled Warthog
Flood Controlled Ghost
Flood Controlled Scorpion
Flood Controlled Wraith
Flood Controlled Pelican

[Forerunner]
343 Guilty Spark
Sentinel Aggressor
Sentinel Aggressor Captain
Sentinel Enforcer

[Customization in Menu]
Great Schism Option
Hostile Humans Option
Heretic Allies Option