

@pt_frizzer I use 80% PFE in countdown, it does indeed make you feel 'immortal' against all the Elites.. Hunters are classed as Elites so 80% PFE does work against them, you can take 6-7 shots before your armour is smashed, though I also use Unbreakable, so I can still take even more shots from them before I must heal. However, their melee attacks are different. 1 hit from their melee attack automatically wipes 99% of my armour AND Unbreakable in ONE go, regardless of how much armour I have. So in this Melee case, PFE does not work.
In Countdown I have seen players with lots of bonus armour so when a Hunter melee attacks them they appear to keep much of their armour intact. This is from casual observation, not done any testing on this.
Bug 1. If you make it to the Helo and find yourself Stuck at the 100% Loading Screen - Double tap the ESC and then HOLD the ESC button for about 2 seconds.. If you do this right, (might need retrying till you get the hang of it) then this works 100% of the time..
Bug 2. If you and or, your team start hunting for the hunters at the start of the mission for farming then there is a VERY high chance you will get disconnected.. Have seen this happen many times, where I, or another team mate are the only ones still playing the mission when everyone eles has been disconnected. - Leaver the hunters until end of mission.
Bug 3. Sometimes when playing Countdown a strange bug happens, your team mates names dont show up on your HUD, Enemies will become invisible though they can still shoot you and any loot on the ground will also become invisible!. - No workound found, have to restart the game.
Will add more bugs as I find them here.
@misterfibble No need to restart the game when you get to the Loading Screen 'bug', just double tap the ESC key, then press down on this key for for 2-3 seconds (might need to repeat a few times till you get the hang of this), until you see the countdown restart then you know you've gotten past this bug.