Field Upgrades in Battlefield 4

BF4 Specialisations Announced - Full listing

Seen at E3 earlier this year, the specialisations for Battlefield will change. Currently in Battlefield 3, the specialisation system relies on individual players unlocking the specialisation through the level system, and each member of a squad choosing one which can either support an individual or support the entire squad. 

Battlefield 4 will treat specialisations, now called Field Upgrades, differently. Squad based actions such as repairs, revives, resupplies and following orders will all contribute to a progress bar, known internally at DICE as the "Bro Bar". The Field Upgrade Progress Bar (FUP) will give the entire squad a bonus when it's filled to certain points, but can be reset if all members of the squad are killed.


Players will be choosing different "paths" for the FUP to use. The two universal upgrade paths, the Offences and Defence path, which will work for any class chosen by the player.

Offence starts with SPRINT and goes through AMMO, MORE GRENADES, and REDUCED FALL. These give you quicker sprint speed, more available ammo magazines, one extra hand grenade, and allows you to fall from greater heights without taking any damage, respectively. This universal upgrade path is great for players who enjoy being at the front lines and leading the charge.

Looks like the path to choose for getting to the front as quickly as possible, holding the position against the enemy before they can get there.

Defence path will net you ARMOR, COVER, FLAK, and QUICK REGEN. These grant you increased protection from shots to the chest, a decreased rate of being suppressed, decreased damage from explosions, and a shorter time span before the out-of-combat health regeneration kicks in. If you are more defensive-minded, perhaps playing as Support from the sidelines, this can be an excellent choice.

 As the name suggests, this one is all about sticking it out against an oppositions attack, as surviving under fire. 

Not only will the universal paths be available, but each of the classes will have class specific paths to choose from. DICE also said they are including over 25 specialisations that are available in the different paths, an increase from the 7 currently available in Battlefield 3. I've listed the specialisations below.

Plan your careerBelow is the full list of specializations that will be available in Battlefield 4. Note that we are still in Alpha stage, so all names, designs, and fine-tuning are subject to change. This will give you an idea about the type and variety of specializations in the game. Some of these are universal, some of them are tied to one of the specific playable soldier types – and most of them are all-new to Battlefield 4.

SPEC	IN-GAME EFFECT
SPRINT	Increases maximum sprint speed
AMMO	Increases maximum inventory of bullets
C4 EXPLOSIVES	Increases maximum inventory of C4 explosives
COVER	Decreases amount of incoming suppression
SUPPRESSION	Increases the amount of outgoing suppression
FLAK	Decreases explosion damage
GRENADES	Increases maximum inventory of hand grenades
(NEW) ROCKETS	Increases maximum inventory of AT (anti-tank) and AA (anti-air) ammo
(NEW) MINES	Increases maximum inventory of AT Mines or M2 SLAM
(NEW) STEALTH	Player is undetected by Motion Sensors except when sprinting
(NEW) HOLD BREATH	Increases time you can Steady your scope
(NEW) FAST REPAIR	Increases speed and sabotage of Repairs
(NEW) DEFIB UPGRADE	Increases charge up speed of the defibrillators
(NEW) 40mm GRENADES	Increases maximum inventory of 40mm grenades
(NEW) ADVANCED SPOT	Increases time your targets are Spotted
(NEW) MEDKITS UPGRADE	Increases maximum deployed medic bags and packs
(NEW) MOTION SENSORS UPGRADE	Increases the maximum inventory of Motion Sensors. Increases the range of T-UGS and MAV
(NEW) MORE DEPLOYED EXPLOSIVES	Increases maximum deployed Explosives
(NEW) AMMO BAG UPGRADE	Increases maximum deployed ammo boxes and packs
(NEW) ARMOR	Reduces incoming damage to the chest
(NEW) QUICK UNSPOT	Reduces time you are spotted
(NEW) MEDICAL UNIT	Occupied vehicles will slowly heal nearby soldiers
(NEW) SUPPLY UNIT	Occupied vehicles will slowly resupply nearby soldiers
(NEW) REPAIR UNIT	Occupied vehicles will slowly repair nearby vehicles
(NEW) REDUCED FALL	Increases height you can fall without damage
(NEW) QUICK REGEN	Decreases time before out of combat heal
(NEW) MP-APS UPGRADE	Longer uptime on MP APS
(NEW) INDIRECT FIRE UPGRADE	Increases maximum M224 ammo. Increases maximum XM25 magazines
(NEW) CLAYMORES	Increases the maxium inventory of claymores

From Battlefield Blog