Somebody has to explain something for me

From last 2 updates, i've seen some problems with the game.Crashing more, errors from nothing, if i jump from a big building i receive CF_Error, if i am touching a box i got the same error>
uploading pictures
but on the Castle map and Compound everyone entering in boxes.
After long and long matches on Crossfire, i decided to test with my friend which body part is damaged with 29-31 hp, and i saw for first time in my life in a shooter, a bullet in MOUTH has to damage someone with 29-31 hp, (shooting with an M4A1 , AK47 and then M4A1 obsidian). Is not possible to see that in a game based on shooting, a bullet in MOUTH is causing lower damage as a shot in leg or hand. Firstly, MOUTH is a part of our face, of our head, so i think a shot in MOUTH can be counted as headshot! I play this game since 4-5 years, but never seen this on our game. Is frustrating to see a list which contains only damage like 29-28-31-29, after tapping a bullet to the head. When i asked a gm on stream, he told me that probably the player is lagging +armor, but i had the same ping as my friend (55 ping) and no armor and i shooted him in mouth and the damage has the same: 29 hp.
Crossfire, PLEASE, fix the game and make it as long time ago, now, the game, with the new modes and maps , looks like a game based on racing (deathrally map), based on mutants killed (hmx,Mutation mode and hero mode), and then on Mutant vs Ghost ,where i cant see the shooting theme.