this is something i almost immediately noticed upon entering some PvP TDMs yesterday.
Playing on maps im familiar with, with guns im familiar with, i noticed a significant decrease in range and power per all the guns i used.
shotgun/autoshotgun - taking 3 shots to get a kill. used to be a 1 shot when close, 2 shots at a short distance.
sniper - playing little seoul park i noticed a guy shot me 4 times with a sniper rifle to get the kill. due to the closer range he was, this should have been a 1 shot kill.
assault rifle - this is when i first noticed because on a certain map i have a solid technique that requires me being near max range. i was dumping whole clips off to get a kill, normally i could get 2-3 per clip.
pistols - same deal. in a forced match i would dump a whole clip sometimes not getting a kill. almost required the headshot to get a kill.
also another thing - the red arrow above your head in the new update- no point in trying to be stealthy when u have a giant bright red arrow above your head...
i didnt see a discussion on this please let me know what u think from your experience...