M14

The M14 is a battle rifle designed for use at mid to long range. It's advised to avoid close quarters combat as it has little ammo and is slow when in ADS. However, the M14 does sport high damage and has the highest accuracy in the game.

Overview
The M14 is meant for one role: shoot down enemies from a distance. The high damage of the weapon allows for headshots on unarmored enemies. You can even one shot the torso if you are close enough. But the CQB capabilities of the M14 are somewhat limited. It takes a bit for the gun to aim into ADS, making you vulnerable if there is an approaching Cloaker.

It's best to aim mostly for headshots on unarmored cops and plant well placed shots into the body of the more armored FBI and SWAT units, That way you can conserve more ammo for the M14's rather small magazine. However, when shooting at a moving target, placing a well placed shot is challenging. Another issue is it's ammo reserve. Like the Rattlesnake, the M14 has trouble conserving ammo. You can compensate for this by adding an extended clip, or having the Fully Loaded skill.

The sniper scope attachment partially obstructs the ADS, but it is easily able to be worked around. The sniper scope also adds more accuracy and stability which helps you plant more accurate shots onto the target. You may also add FMJ rounds to add even more damage to the already high damage.

Stealth Capabilities
The M14 surprising has a pretty decent detection. Although, bringing along a high-power DMR is probably not needed when stealthing, the M14 is capable of stealth. The detection bar may fill faster than using a proper stealth build, making it a bit challenging to sneak around without getting detected.

Attachments

 * Sniper Scope- +2 Accuracy, +5 Stability, +1 Detection
 * Suppressor- -5 Damage, +2 Detection
 * FMJ Rounds- +25 Damage, +1 Detection
 * Tac Light- +3 Detection, Adds a flashlight to light up dark areas
 * Extended Mag- +3 Magazine, +3 Detection

Summary
In summary, the M14 is great for picking off targets from a distance, but not suited for CQB because of its rather slow time moving while in ADS. Although the M14 has decent detection, it's unnecessary in stealth missions. It's better to bring a proper stealth weapon, such as the P90, instead of the M14.

Trivia

 * The in game model of the M14 seems to be the military version of the M14.