[laiocfar]

I use the same tactic to most of UFO, 2 teams of at least 4 men to make cross fire in the door. Some ufos got more than one gate so i make 4 teams to ambush them when coming out.
There are 2 lager Ufos, the battleship or UFO type 9; and the mothership or UFO type 10. Both with 4 squares on cityscape. The fisrt of them got like windows in the side. The battleship assault is the hardest to made. The enter to the Ufo is under the land, u should go by the corridors, there is an exit just in front of this gate so go there fast or the aliens will escape into city. There is also two windows in NE and SW sides, only flying units can move by there, so the flying bananas(sketoids?) will attack your rear. An airbone strike using marsec armor its too risky cuz u will get in the heavy fire as the aliens do when comming out from normal ufos. U also will find that they both carry a complete army inside. If killed the flyers, the bears aliens(Megaspawns?), the antropod cohort and the walking bombs; u should enter cuz there are always some aliens without enough moral to go out and some other bears trapped. In short, 2 teams to cover the ufo´s gate from north and south(4 men and expect to lose 1 or 2 per team), 2 teams of three people for cover the enters to the corridors(they should sppot the flyers and when done reinforce the team that get in combat with the other); after the main battle, reagroup unwounded soldiers in an assault group to enter the ufo and end the mission, u should got at least 6 healty troopers... if not the risky of defeat is still great.
This was a battleship, unlucky, i only assaulted a couple of motherships and with heavy causalities. I still dont get how do this type of Ufo, but u shoul made some blows to the alien dimension preventing attacks for avoid most of motherships.