See
here for aircraft
For tanks:
LRT
Stands for Light Recon Tank. These tanks are lightly armored and lightly armed, and are best for reconnaissance. Because they are smaller, their engines are smaller as well, and as such quieter.
Models:
LRT-2: The newest, most advanced LRT. Equipped with advanced targeting equipment. Armed with a light cannon (turret mounted) and a machine gun (on top).
Price: $7 million per unit
LRT-1: An older model of LRT. The equipment is not as advanced, but the tank is cheaper. Armed with a light cannon (turret mounted).
Price: $5 million per unit
SBT
Stands for Standard Battle Tank. These tanks find a balance between speed and armor/armament. They are fairly inexpensive and are made for normal combat situations, with moderate armament and armor.
Models:
SBT-3: The best model of NAM's SBT series. It has the most advanced equipment and weapons. Armed with a medium cannon (turret mounted), a light cannon (fixed), and a machine gun (on top).
Price: $8 million per unit
SBT-2: A slightly older model. This version is less advanced, but is more heavily armed, with two medium cannons (turret-mounted) and a machine gun (on top).
Price: $6 million
SBT-1: The tried-and-tested SBT-1 is one of the most important tanks in the Nebulan arsenal. It is inexpensive enough to produce in large quantities, meaning that it is more affordable and can overwhelm enemies through sheer numbers. Armed with a medium cannon (turret-mounted) and a machine gun (on top).
Price: $4 million
HAT
Stands for Heavy Assault Tank. These tanks are heavily armored and armed, meant to go in the front of the battle. A line of these is basically unstoppable without several artillery batteries or air support.
Models:
HAT-2: The most recent HAT. This model is actually wider than it is long, with two independent turrets and machine guns. Equipment is advanced. Armed with two independent medium-heavy cannons (turret-mounted) and two machine guns (on top).
Price: $10 million per unit
HAT-1: An older HAT. This version is more typical for a tank, although it has very heavy armor and weapons. Equipment is less advanced. Armed with a medium-heavy cannon (turret-mounted) and a medium cannon (fixed).
Price: $7 million per unit
APC
Stands for Armored Personnel Carrier. These tanks are larger, because they are made to carry a squad of soldiers into battle. NAM's APCs are also well armed in case the tank needs to carry soldiers through combat zones.
Models:
APC-2: Unlike the other series, numbered APC models do not always indicate time of release. The APC-2 is a slightly newer model, but designed in conjunction with the APC-1: one would fill roles that the other neglected. The APC-2 is a small APC, designed to bring small numbers of soldiers or commandos into a certain area of the battlefield. It is painted dark colors for use at night and is armed with a light cannon (turret mounted).
Price: $6 million per unit
APC-1: The typical APC, large and with a large capacity. Armed with a medium cannon (turret mounted) and a machine gun (on top).
Price: $10 million per unit