G3

The G3 is a battle rifle designed in 1959 and manufactured by German small arms producer Heckler & Koch. It is a selective-fire weapon chambered for the 7.62x51mm NATO cartridge, is typically fed from a 20-round detachable box magazine, and has a fire rate of 500 to 600 rounds per minute depending on the variant. There are four variants of the G3 that currently exist. The most recent incarnation of the rifle is the A4 variant, which possesses a collapsible stock.

Battlefield 2
The G3 is the Tier One unlock for the Assault Kit in Battlefield 2. The rifle itself is more powerful than the default assault rifles, as the weapon is a battle rifle which uses full-sized 7.62x51mm rifle rounds. However, it is made significantly less attractive to players because of the smaller magazine capacity (only 20 rounds compared to 30 for other assault rifles) and lack of a grenade launcher. However, some players actually prefer it, because they find the iron sight easer to use than the other assault weapons and in certain situations, having regular grenades is more usefull than having a grenade laucher, e.g. when the enemy is on the other side of a hill.

Battlefield: Bad Company 2
Only available in multiplayer, the G3 is the last battle rifle issued to all kits requiring the achievement of Rank 22. The G3 uses a 20 round magazine, has a fully automatic firing mode and can be modified with a Red Dot Sight or a 4X Rifle Scope (with download of the 1.05 Patch or on private PC servers). It has a low fire rate combined with high power, but with very low fully automatic accuracy. This attributes make it preferable for close to medium range, however the G3 can be used in one to two-shot bursts at medium to long range in order to minimize accuracy loss. Automatic fire and hip firing is more effective for close range combat. If an optic is attached to the G3, it can aid greatly with pin-point accuracy, especially at long range, however some players might not find it necessary, due to its generally open iron sights. When the G3 is shot from a crouched position, it is far more accurate due to the lower recoil. The G3 is one of the weapons that has a 50% recoil decrease when crouching making crouching a better option for long range targets.

Magnum Ammunition is a good choice for players using the G3 at long range as it minimizes the amount of hits to kill to a maximum of four (20x1.25=25), rather than five. It also greatly increases close range damage (25x1.25=31.25), so a slightly injured opponent might be able to sustain as little as three hits.

Marksman Training is also an effective option, improving the G3's poor accuracy. The G3's high damage makes it very capable even without Magnum Ammo.

The G3 can very advantageous for assault players in larger otherwise tank-oriented maps, such as Heavy Metal and Atacama Desert, as the G3 provides a balanced middelground between the long range accuracy of the M14EBR, and the close combat capabilities of shotguns, while having access to C4 charges for anti-tank needs.

Battlefield Play4Free
In Battlefield Play4Free, the G3A4 is the default assault rifle for the Assault Kit. It has a moderate fire rate and high damage, but a low magazine and decent recoil as it uses a heavier round than many of the other assault rifles. Many player quickly trade out for another assault rifle as soon as possible as the G3A4 is very basic as a starting assault rifle and it's 20-round magazine means that users will be reloading often.

It is best fired in burst of 2-3 shots or as close to semi-automatic fire as possible because it's recoil can throw a player off their target quickly. In close quarters, however, the weapon's heavy round does a wonderful job at removing threats, but the player will have to be accurate with their shots due to the weapon's low magazine size.

Battlefield 3
In Battlefield 3, the G3 is a semi-confirmed weapon. In the EA PWNED Battlefield 3 special, Alan Kertz, lead weapon designer of Battlefield 3, mentioned that his favorite weapon was the G3, hinting at its inclusion in the game.

Trivia

 * Developers DICE had originally intended for the G3, and the M14 Mod 0 Enhanced, to be able to be modified with attachable optics, however, they locked the ability to do so before the release of the game. Although players knew it was possible, through evidence from the first Squad Rush trailer and the VIP Map Pack 3 trailer, it was originally impossible to equip the Red Dot Sight or 4X Rifle Scope, except through the use of private PC servers which modified the game to unlock the ability. DICE had asked the community through a Battlefield Blog post if players wanted to have the optics for both the M14 and G3. Though many comments opposed the idea, many community members were for it. Hence, the G3 and M14 Mod 0 Enhanced were able to equip optics with the recent release of the 1.05 patch.
 * The M416 in Battlefield: Bad Company 2 uses the same style ironsights as the G3, due to them being made by the same company, Heckler & Koch. However, the M416's rear ironsight seems to be much closer to the user's face than the G3's, and takes up roughly 35% of the bottom of the screen. The G3's sights, by comparison, are far less obtrusive.
 * The G3 is the last 'all-kits' gun that players will unlock.
 * Upon release of the game a glitch occurred, saying the Player had to be Rank 26 to unlock the G3. This problem also occurred for the Mk14.
 * If you have G3 as primary weapon and M93R as a pistol, there swapping animation will be the same as swapping to XM8P's under-barrel attachment.

Videos
thumb|300px|left|Gameplay with the G3 in Battlefield: Bad Company 2 at [[Atacama Desert]]