Questions after the first gaming session, What the hell was I doing? Options

[Troyminator]

Hi All,

I ran our first Shadowrun game last night and none of us are very familiar with the game mechanics. I had everything printed out that I needed and promptly left it at home. I did a lot of things on the fly and people seemed to have fun.

I have some questions, though. I hope that you all can help me with it.

We had a dwarf character sprinting to get/keep away from a pack of ghouls. Sprinting is a simple action that gives a -2 pool to other actions. We couldn't figure out if a character could shoot then sprint and not get the -2 penalty. After musch discussion, we decided that in 3 seconds, a character wouldn't be able to shoot and sprint 20 meters without taking the -2 pool penalty.

The same dwarf character was trying to sneak up on a Tanamous warehouse, his successes were equal to the ghouls perception roll and, IIRC, the rules state that a tie goes to the defender. Who would have been the defender: the dwarf sneaking up or the ghouls guarding the warehouse (actively using perception to make sure nothing happens to the warehouse)? We eventually decided to have a "do-over". The dwarf lost (which is why he was sprinting to keep away from the ghouls).

Said dwarf is also a hacker. He wanted to try and use the matrix to scan an abandoned building to see if there were any people in there using comlinks. Also he wanted to see if he could tell how many people were in the building by the number of active comlinks. Is this even possible?

Thanks in advance for your help

-edited for spelling mistakes-