This section in rules(md).ini specified behavioural characteristics of objects engaged in missions. These 'missions' are not singleplayer campaign missions or anything like that. A mission in this sense is something like 'Attack', or 'Area Guard' or 'Harvest'. Something that the computer performs automatically.
Most mission behaviour is hardcoded into the EXE file, but a few values can be overridden in each mission's section in the rules(md).ini file.
New missions cannot be added, and conversely you should not remove any either. There are quite a few within the section, some are unused. Some new missions have been added in Red Alert 2 and Yuri's Revenge. This has been noted in the table. Here are all missions contained within the Mission Control section, in the order they appear in the INI:
Mission Name
|
Function / Objective
|
Sleep
|
Unit basically plays dead.
|
Harmless
|
Unit will not return fire, and is not considered a threat by the AI.
|
Sticky
|
Operates like Guard mode, but the unit will not move from its current location.
|
Attack
|
Attack mission used by team logic.
|
Move
|
Move to a destination. Simple as that.
|
Patrol
|
Patrol a series of waypoints. Used by units in a waypoint loop.
|
QMove
|
Queued Move. Similar to move, but only used when all other queued moves have been carried out.
|
Retreat
|
Run away. The INI states that the unit may leave the map too.
|
Guard
|
Engage any enemy that enters weapons range. The defending unit may follow the aggressor.
|
Enter
|
Enter a building or transport.
|
Eaten 
|
Function unknown.
|
Capture
|
Mission used whenever an Engineer unit enters something.
|
Harvest
|
Automatic mission used by harvester units. Collect ore, dump it, repeat.
|
Area Guard
|
Guard the general area around the unit.
|
Return
|
An unused mission.
|
Stop
|
Halt! Basically, the unit will cease firing and moving whenever it can.
|
Ambush
|
An unused mission.
|
Hunt
|
Seek out and attack enemy units.
|
Unload
|
Unloading cargo, e.g. an APC unloading passengers.
|
Sabotage
|
C4 mission.
|
Construction
|
Mission used by buildings when they are initially placed.
|
Selling
|
Mission used by buildings during deconstruction, i.e. when they're sold.
|
Repair
|
Used by the Service Depot to repair the docked unit.
|
Rescue
|
A special override mission. Perhaps used if a critical unit is in danger.
|
Missile
|
Used by a Nuke Silo when it is firing.
|
Open
|
Gate structure operation.
|