Projectile Arc

In the Battlefield franchise, especially later games in the series, improved projectile physics mean that, often, the games can include bullet drop over range, both to make utilising the Sniper/Recon kit harder, but also to add an element of realism to sniping at longer ranges. In all games where bullet drop is present, the projectile physics concerned use the standard acceleration due to gravity, ~9.81ms-2, for the calculation of bullet drop.

Battlefield 2
There is a considerable amount of bullet drop over long distances. Combined with the fact that there is always a small amount of spread with the sniper rifles, it can make predicting a bullet's long-range trajectory near-impossible at distances beyond several hundred meters, as the potential area in which the bullet may land increases exponentially with distance.

Battlefield: Bad Company 2
In Battlefield: Bad Company 2, bullet drop is present for all weapons, including rocket launchers. While all weapons suffer from bullet drop, it is most prevalent with the Recon kit, due to the magnified scope magnifiying the bullet drop when aiming.

Countering buller drop is easy - players need only to guess the range of the target and then adjust the elevation of their shots carefully to negate the effect. Snipers are the easiest to do so with this, with weapons such as the M24 and the GOL having open sight reticles, making adjusting the shot easy, while the reticle for the SVU and the SV-98 are harder to use, but still potent.

On maps such as Laguna Alta and urban/woodland portions of most other maps, the typical ranges of combat make the benefits for adjusting for bullet drop negligable. If in doubt as to aiming a shot at medium ranges, players should usually avoid risk and aim directly for the head - doing so will usually result in a hit to the target's body, instead of the bullets sailing over the target's head if the range guess was wrong.