Senior Gameplay Designer on Battlefield 3, Alan Kertz, revealed a bunch of details regarding Battlefield 3 on twitter while answering questions from fans. He talked about the revival system, hitregs, squad beacons, shotgun sniper rifles and much more. Check out the full reveal below.

Squad Specs don't stack and players can use as the same numbers of squad specs as the squad members.

Frag won't be doing a lot of damage to the environment since they aren't really high explosives.

No Hitreg and there will be a totally new system for BF3.

Multithreading will be supported.

Supersonic bullets make a crackling noise when close enough.

No weapons for the pilot of a transport chopper, but there will be rewards.

There will be lots of never before seen vehicles, some returning classics, and a TON of customization items.

6x is the highest zoom level for most guns apart from recon rifle.

Flag number varies between Conquest Small and Conquest Large. But is consistent across platforms.

Squad beacon goes away on respawn.

When the beacon is outdoors in the open you control the parachute.

A host of fast and light Jeeps with a heavy MG will be at your disposal.

No shotgun sniper rifles.

Up close in hardcore bolt action sniper rifles can 1 Hit Kill at close range. In normal, no 1 Hit Kill with bolts in the body.

The ranks are based on Authentic Marine ranks, with comendations to fill out the full 50.

Marksman Bonus for sniper headshots beyond 50m are back!

Wide variety of shotgun types, but only 1 pump action – Semi, Auto, Tube, Magazine, different spreads.

Flight models will be identical on PC and consoles.

Players can shoot stingers from the passenger seats.

The mortar has both HE and Smoke rounds.

When you get defibbed you are "back to life." You need to accept to use anything other than your pistol in prone.

You can shoot someone trying to knife your teammate from behind.