Dirtside II-Questions

This weekend my game group did a 30,000 point per side
bring-n-battle. Each player had 10,000 points to spend on a Mercenary
Regiment and, Inevitably, Questions arose.

1)Do SLAM packs ignore Stealth? 2)Why are Heavy Artillery batteries costed on
the same Gradient as Medium and Light Artillery, but lack harassing fire.
(maybe there should be a price break) 3) If you are striking multiple targets
within one beaten Arty zone
and the second Target draws a "systems out-firer" chit, does the
previous attack stand?

BTW my dreaded and Justly Feared Blood Hawk Cav overran their firebase and
successfully disarmed their Planetary Sheild
generator....(GOSH I love Grav Tanks!);-)