Weapons

Semi-auto rifles

 * Semi-auto rifles come default with any infantry or paratrooper. Most can be modded for higher RoF, a 2-hit kill, or have a scope mounted. Infantry and paratroopers have access to 1.9x scopes, recons can get a higher power scope.

Bolt-Action Rifles

 * Bolt-action rifles come default with any recon unit, and can be bought on infantry as well. They can all be equipped with scopes, and can be modded for one-hit kills.

Submachine Guns

 * Submachine guns are close-quarters combat weapons with high RoF, that usually kill in 3-4 shots. Recoil is moderate, but range is pitiful.

Light Machine Guns

 * Light machine guns are infantry only (barring the Johnson and FG42) weapons with moderate range, high Rof, high recoil, high mag capacity, and moderate damage. The recoil can be reduced by deploying a bipod at the cost of mobility.

Assault Weapons

 * The Sturmgewehr 44, M2 Carbine and AVS-36, often known as "Assault Rifles", are infantry-only weapons that can fill all roles to some degree, with high RoF, moderate range and damage, and can even be equipped with a scope. The main downside is high recoil, making them difficult but rewarding weapons to master.
 * NOTE: The AVS-36 shares its modifications with the StG 44 (excluding ammo), while the M2 Carbine shares its non-ammo modifications with the Semi-Automatic Rifles (for consistency with the M1 and M1A1 Carbines).
 * Flamethrowers are also infantry-only and fill an extremely specialised short-range point-clearing role.

Anti-Tank Rifles

 * Anti-tank rifles can deal massive damage to light and medium armor at close range, along with all unarmored vehicles. They will one-shot enemy combatants anywhere on the body, with a downside of poor accuracy and long reload times.

Handguns

 * Handguns are small backup weapons that can finish off a target if you run out of ammo in a primary weapon, or give a tanker/pilot a chance to fight without their vehicle.