new to deepstrike

If a squad deep strikes on a raider can it shoot a blast weapon such as shredder? Does the squad count as moving when shooting a splinter cannon or dark lance? If I give the raider a torment grenade launcher can it shoot it and the darklance? What page am I missing?

Under Arriving by Deep Strike:

Quote :

In that turn’s Shooting phase, these units can fire (or Run, Turbo-boost or move Flat Out)
as normal, and count as having moved in the previous Movement phase. Vehicles, except
for Walkers, count as having moved at Combat Speed (even Immobilised vehicles). This
can affect the number of weapons they can fire with their full Ballistic Skill.

So yes it effects the squad inside.

Under Shooting with fast vehicles (Raider is a fast vehicle that is a skimmer):

Quote :

Fast vehicles that moved at Combat Speed in the preceding Movement phase can fire all
of their weapons, just like other types of vehicles that have remained Stationary.

So yes you can use both the Darklance and the grenade launcher on the raider.

But the squad on board counts as moving,
So there splinter cannon can only fire the lesser of the salvo shots at half range and the dark lance is snap firing.

Maybe I should have typed a more clear statement, yes the squad inside counts as having moved, like stated by KennyK76. The Raider's Dark Lance and and Torment Grenade Launcher can both be fired as it is counted as having moved at combat speed.

The a raider that moved 6" or deepstriked can shoot as if it was stationary but the troops inside still count as moving. Is this correct?

Correct