Here are my initial thoughts on the few games I played with the new settings:
1. I like the XP reset, I think it helps to bring a bit more challenge back to it all as the 100% everything makes it easy to rest back on spam. With that said, I think I would prefer something like a monthly reset vs an individual amount reset. This would help balance it out and potentially ensure no one just sits in spec to "pick their battles" if they are on a high enough XP to have an advantage, but it might cause them to tick over and have to face others on large XP.
2. All players setting off mines is kind of annoying. Maybe that is good that it leaves less on the maps, but personally it is annoying to die by poorly placed team mines and it is annoying when teammates run over your mines. Maybe I need to see more of this before I could make a definite call. This may also help to make engies less OP since they can't mine super obvious places (like racks) since their team would die.
3. Medic self pack time feels like watching grass grow to me. I saw in the latest change that it is now 10 seconds before self packing (haven't tested much so can't comment properly). At 5 seconds this is already quarter of your spawn time (axis usually 20 secs), so a lot of the time you figure you might as well /kill, which leads to less pushes if you are allied. If this is now at 10 seconds, there is zero incentive to play allied as a medic since you might as well go axis, run for a bit, /kill and repeat as the enemy comes to you. If you are allied, you might get through 1 or 2 people in the offensive, but you will very quickly be killed by any half decent axis defense. If you have decent numbers and you rambo medic in twos, then sure this isn't really an issue, but for any low number games up to say 4v4, it really makes it hard for allies to make a push without a rambo medic.
Given that we have reset XP, you can't continually pack to the extent of before, so I think we may have skewed the changes a bit far on the dial for this one. If we want to balance it out, we could reduce the recharge timer to limit number of packs and then let medics pick up the packs as per normal. I personally find it really jarring to not be able to pick up a pack and have ended up wasting lots of packs to the floor while running. I have also seen (and am guilty of) medics waiting a long time somewhere for packs to work, which again is easy for axis as they just wait for allies to come to them, but allied medics would be very disadvantaged I think. It also makes it less incentive to needle your team as you are usually in the firing line, why take any hits when I can't heal myself for 10 seconds? Might as well let you tap out, rambo a bit and then /kill to come back for more
Based on these current changes, the Engy class has all the power since they can mine easy places and have rnade to throw at medics. They can pop off 2 in a short space of time, so it's easy to sit back, rnade + mine and wait for allies to come into the death trap xD.
4. Love playdead and so happy it is back! \o/
Cheers