Rifleman Archive

I recently became a novice rifleman and was wondering if someone could help in explaining the different types of shots that can be obtained:

Conceal - so this allows us to get a shot in before they know we're there, how successful is this? How many times can I use this shot before they know i'm there?

Flurry - so this shot can make your enemy dizzy. What does dizzy do?

Flushing - allows for startle and stun, what does this do?

Strafe - what does this do?

Can anyone explain these shots and i've also heard that rifleman can knock opponents down, how do you do this?

Thanks

Also, could someone help out and explain the different types of damage (i.e., energy, heat, kinetic etc...) that would be very helpful.