What AI tactics in TFTD differ from UFO?

I've feverishly been playing TFTD for the last week and yesterday I encountered an alien tactic that I haven't seen in TFTD before and that I never saw in UFO. The tactic was total camping.

I downed a large sub of Gillmen, the kind of sub with 3 decks and the entrance on the 2nd deck above some stairs. As always I carefully and thoroughly combed the area around it but without finding any signs of life. Finally I spotted a Gillman coming through the door and down to the stairs tossing grendes before retreating back into the sub. Another was firing from one of the windows in the back at the 2nd deck. Grenades and missiles dealt with them, after which all was quiet. I tried to blow up the doors and make holes in the hull with Aqua-Jet missiles and high explosives but that doesn't seem to work for the big subs like it does for the smaller subs. Sending the troops in, I found 2 Gillmen guarding the door but was able to kill them without taking reaction fire, thanks to the non-intrusive way of opening doors in TFTD. Four gillmen camped on the lowest deck and the rest are seemingly camped at the upper floor, which is the most dangerous part with small rooms and many doors. An ideal camping site. I'll deal with them after work today.

Having played hundreds of missions in UFO and TFTD I have never before come across a mission where non of the aliens ever left their craft, and here there are probably around a dozen of them. Has anyone seen this kind of thing before?

Have you come across any other rarely seen AI tactics in TFTD that aren't used in UFO?

Downing large subs early in the game

It's april 2040 in my game, and the aliens just sent a fleet of subs into the North Atlantic, where I have 3 subs, each with 2 D.U.P. launchers. I sent one Barracuda after a large sub. In a careful attack it fired all 6 torpedoes with close to 100% hit rate but the large sub did not go down. Meanwhile the other two Barracudas engaged another large sub. Their careful attacks also hit with almost all torpedoes, i.e. 12 torpedoes with almost as many hits. The large sub just sailed on as if it got slapped with a herring.

What does one have to do to sink those large suckers? I'd rather not have to do an agressive attack since the first time I tried it I lost a Barracuda and got a major score penalty.

Cazbol

A new button?

I'm just making the transition from UFO to TFTD, which shouldn't be hard since TFTD is but a UFO mod.

There is however one thing I don't understand. Next to the 4 buttons that reserve TUs for various types of shots there are two new buttons. On the right side there is a button that adds 4 points to the reserved TUs for kneeling. One the left side is a button of the same shape with a slashed through picture of a man and a 0 beneath it. The only thing I can get this button to do is to deplete all the TUs. Am I missing something here or is there some value in this button?

Cazbol

Pete

My better half :inlove: is trying to register with Unity, but isn't getting a reply. Is there something wrong with the email account or is Pete just in hiding?

Cazbol