Here are just a few questions to see how broadly some of these things are known.
Votes are private so don't be embarrassed. Just be honest.
Also, if there are any other bits of useful information you feel is often misunderstood, please post below!
edit: adjusted the language on PPC's at close range. (devs say the damage attenuation is linear from 90m down to 0, but player experimentation indicates it may be exponential)
edit 2: A clarification on the way damage transfers when attacking destroyed mech bits - unlike ammo explosions, when you attack a destroyed mech piece, the damage is initially applied to the front armor of the next piece before it gets applied to internal structure. Back armor is ignored in this process. The tricky part is when you destroy a leg, then keep shooting it - the damage will get cut in half before being applied to the respective side torso. Once the side torso is destroyed, shooting the leg will transfer damage to the center torso, however only 25% of it makes it to the CT since it's cut in half twice! Just make sure if you're trying to shoot out a mech's one remaining leg, you hit the correct leg, because in many cases shooting a dead leg is about as effective as shooting the ground!
edit 3: Furthermore, when destroying a side torso, any remaining armor on the front or back remains and continues to absorb damage, unless damage is transferred to the side torso from another destroyed part such as a leg or arm, in which case the remaining armor instantly vanishes, and said damage is transferred through to the center torso! (Thanks Thontor!)
edit 4: Touched up some of the questions phrasing to be a little more clear and informative.
edit 5: Apparently, when Thontor asked Bryan Eckman about the 50% damage reduction each time it passes to another mech part, Bryan's response seems to indicate he sees it as a bug.
edit 6: It turns out the wiki article on CASE contains inaccurate information regarding the order in which ammo is used from the various parts of your mech, so question 7 has been removed to prevent further misinformation.
Edited by Atheus, 23 April 2013 - 09:49 PM.