After spending an excruciatingly long day trolling these forums for the up and up on the new 1.2 patch, I've decided to list everything that changed with the new patch. Considering the majority of people can't search for crap these days, I'll list stuff here (without too much bias ). Feel free to tell me other stuff to add. I'll add stuff in italics that is my own experience.
Weapons:
G3A3 (assault unlock)- accuracy improved
for those of you who like the G3, rejoice! I really like the new G3. All that damage is worthwhile now
L85A1 (medic unlock)- damage increased
although a small damage increase seems worthless, it now takes only 3 hits to kill a foot soldier
PKM (support unlock)- accuracy increased
this is a huge improvement--sort of like the G3, 1.2 makes the PKM relatively accurate
SMGs - accuracy increased
supposedly this is really good, but I haven't tried it yet
Sniper rifles- accuracy improved
yay! The SVD, Type 95, and M95 are as accurate as the old M24, which gets a boost of its own
L96A1 (new EF sniper rifle)
the sound...so cool! Just as accurate as the M24, but better looking and cooler sounding
the MEC and PLA now can compete with USMC snipers- a definite improvement
FN P90 (new EF SMG)
haven't unlocked this, but found the sight to be good but the rifle fairly inaccurate
I would suggest sticking with other unlocks unless you ONLY play AT
G36E (SF medic unlock)- accuracy decreased
haven't tried this yet...
LMGs- accuracy increased
noticed that I now was being killed by a M249 SAW...when did that happen pre-1.2?
Grenade launchers- minimum arm distance
have not tried this either yet...I have heard both that it works and that it doesn't though...
Blackhawk miniguns
accoriding to the config files, the explosion radius is now 1/12 of its previous state
Gameplay:
Moving- no longer can bunny hop/dolphin dive/prone spam
yes, it's true- you can't jump and shoot
going prone after you jump is sort of possible- you just can't move afterwards (or in the jump)
there is a delay between prones and jumps- therefore no hopping/spamming
I found that you could still crouch repeatedly (more on this after I check it out)
basically, you cannot left-click while in the air
however, you can toss nades as far as you did before (remember, you just release the right button
Bugs- supposedly fixed the red/blue bug and the karkand glitch
I have not confirmed the karkand bug, but I don't believe that is possible any more
However, the red/blue bug still exists as confirmed by one of the people on the forums here
AA- increased seek distance, accuracy
I have read a large number of complaints by people about the improved AA
I have yet to use the AA much tho- was impressed by what I saw, however
Choppers/jets- lowered HP, fewer missles - i.e. generally weakened
A large number of complaints about this too- separating the chaff from the grain, I guess
Will report later as to the effect (for me)
UAV- now is visible to players and able to be shot down
Forgot about this until I died and saw it circling above my head...will attempt to get rid of the bastard soon
Edit- UAV