I have played TI3 before with very experienced players, but I now have my own copy and have been teaching people.

A question has come up about something, and I cannot get a hold of my other friends for an answer, so here is the question.

During the invasion combat step which lets you use PDSs, Can you use a PDS in an adjacent system to fire at the ground forces coming down to the planet? Assuming you have the deep space cannon.

Jonny WS said:

During invasion, PDS can only fire at the Ground Forces actually landing on the planet with the PDS. Even if there is PDS on a different planet in the SAME system, only the PDS on the planet being invaded will fire.

Deep Space Cannon only lets the PDS fire into adjacent systems after ship movement.

Thanks for the reply. Much appreciated

I read this and had an ammusing thought.

PDS with Deep Space cannons:

Survailance Officer : "Captain, Hope's End is being invaded. They have a carrier full of troops landing on them. They only have their two PDS cannons and three troops to defend."

Captain : "Let's help them out, bring both of our cannons to bear and fire on the invaders."

Gunner : "Aye Captain! Firing!"

*Loud PDS fire and vibrations*

Survailance Officer : "Captain! We were off by 0.003 degrees! We missed the invaders!"

Captain : "What? How could we miss? We at least hit the planet, didn't we?"

Survailance Officer : "We did hit the planet captain. One moment..." *gasp* "We hit our own troops, there is only one defender left!"

Thus, Hope's End lost hope in the end... (couldn't resist)

This is why guided missiles exist. They correct their course.

The rulebook indicates that PDSs do include missiles...