Megalo MCC changes

Halo: Reach on MCC uses a newer megalo scripting build than Xbox 360 Title Update 1. This library models both under separate version bundles and documents the differences here.

Import paths

Build	Bundle
Xbox 360 TU1	@blamnetwork/blf/haloreach/v12065_11_08_24_1738_tu1actual
Reach MCC (Aug 2025)	@blamnetwork/blf/haloreach_mcc/v_untracked_25_08_16_1352

Cross-build conversion: convert_reach_gametype on @blamnetwork/blf/helpers.

MCC-only megalo features (vs Xbox 360)

These exist in the MCC build but not in Xbox 360:

Math operators

MCC adds bit-shift assignment operators on megalo variables:

• shift_left_with (<<=)
• shift_right_with (>>=)

set_to_absolute exists in both builds but its enum value moved (TU1 = 10, MCC = 12).

Temporary explicit references

MCC adds temporary object, player, and team reference types used in conditions and actions. These can often be mapped to unused Global variables for Xbox 360, if enough space is available.

Survival / firefight

• MCC survival variants may set m_additional_flags (e.g. Network Test 1). Non-zero values block MCC → TU1 conversion.
• Survival encoding differs between builds; the converter sets TU1/MCC-specific defaults for unrelated fields.

Action types

Reach MCC adds eight action types at the end of the megalo action table. They are not present in TU1 and will block MCC → TU1 conversion if used in a gametype.

e_action_type	Payload
begin	(none)
hs_function_call	function-name-index (8 bits)
get_button_time	player reference, buttons (5 bits), custom variable reference
team_set_vehicle_spawning	team reference, enabled bool
player_set_vehicle_spawning	player reference, enabled bool
set_player_respawn_vehicle	object type reference, player reference
set_team_respawn_vehicle	object type reference, team reference
hide_object	object reference, should hide bool