What does this mean:
* Double gives 150% damage
* Guard gives 200% resistance
* Guard does not protect armor
* Shotgun does not fit into the mutual formula
* sg deals 100 damage, not 110 as it was in q3 and is written on forums

FAQ (read as Fuck U):
q: but it was already done!
a: sure, if u call this or this "done"

shotgun was changed in last weeks update, spread was adjusted and damage was reduced back to 100. Was previously 110

Nice info!