In the Master Chief Collection, this mode is currently a part of the action sack playlist in at least Reach. I presume that the mode is a variant of the big team battle with a higher amount of vehicles and/or increased vehicle spawns, but can't say for sure. The player health seems identical (Elite slayer has more resistant shields).

  • Also it says you get bonus points for "special objectives" and I haven't the slightest clue what those are. My guess is destroying vehicules? Maybe getting kills while in a vehicule?
    – CoqPwner
    Commented Dec 19, 2019 at 14:23
  • @CoqPwner: Interesting, where the "special objectives" is exactly mentioned?
    – user598527
    Commented Dec 20, 2019 at 8:49
  • During loading, you also clearly see the scores reflecting this. People have a higher score than kills. This is in BTB Heavy, not sure about 4v4
    – CoqPwner
    Commented Dec 20, 2019 at 13:32

1 Answer 1


According to my research from Halo Waypoint forum, you are right "Heavies" mode is a variant of BTB Heavy but for action sack (4vs4). So you will play with lots of vehicles as Tanks/Wraiths/Banshees ... and lots of heavy weapons as Sniper rifle/Laser/Rocket...

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