20) New XCom mission type: Rescue Mission.
When a XCom troop transport (ex: Avenger) is shot down by an UFO instead of being destroyed sometimes there is a crash site with few survivors. And XCom team have some time (some hours, to be determined) to rescue the survivors (there must be room in the transport to bring back the survivors).
Alien team can also send UFO to the XCom crash site. They gain points if they do and there is a combat mission, but this time XCom has to defend (with few soldiers and some injured soldiers before the rescue XCom team landing, with the rescue crew and crashed crew if the alien come during XCom rescue landing).
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21) New Alien mission type: Rescue Mission ;-)
When an UFO is shot down, the alien can sometime send UFO (Battleship or a new UFO type) to rescue the survivors and recover material (Weapons, Alien Alloys, Elerium-115, etc.), they gain points if they do.
If XCom send a troop transport during the alien rescue mission (the rescue UFO has landed (only for 4-5 hours, to be determined)), they have to fight the 2 crews, the crashed UFO crew and the rescue UFO crew.
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22) New Alien mission type: Ambush Mission.
Sometimes the Aliens make Ambush Missions, these are exactly the same as the other missions exept they land for more time (to attract XCom team) and there is more troops in the UFO (and some special strong troop like Muton Commando, and/or Terror Units, to be determined), thus XCom has to face much more troop during combat if they land on the site.
There is no info on the Ambush Mission with the Hyper-wave Decoder, the mission appears to be a standard mission (ex: Alien Research, Alien Supply, etc.).
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Cut from this thread on demand for better convenience:
https://openxcom.org/forum/index.php?topic=2279.0