Great game but terrible game feedback

Optimization in certain areas is nonexistent.

I dump half of a magazine at someone, and he tends to kill me within 1 second. 

Pings are not showing up for real in REDSEC.

Sometimes I do not see downed friends, I mean the icon above their corpses, even though they want to be revived as they claim. 

The armor plate icon was disappearing.

I couldn`t open a parachute on time.

2nd chance redeploys send us randomly all over the map for real.

Knifing is the worst in the series.

You cannot sometimes revive a teammate glitched on some pixel glitch with a defib.

Sometimes you join a lobby with zero reg, you must suffer through or disconnect.

Aircraft bombardment may actually go out of the circle and miss an entire enemy team.

Missing key sounds in BR, the upcoming vehicles or shots at us fired from IFVs or tanks. Zero sound ques sometimes.

Keycards for tanks found in random chests, really, devs?

Being chased by several tanks and other hostile teams vs 4 of us is not an enjoyable game loop in my humble opinion. 

I think nobody playtested the game because most of the glaring issues would have been discovered within 1,5h of playtime.

No Solos and Trios.

Players are dropping like flies, and devs have no idea why???