Mass Effect: Shadow Hunt
Primary
The Alliance military is of great concern to the galaxy. At first contact with the turians, they were completely inexperienced. Turian disdain turned to respect after the relief of Shanxi, where the humans surprised them with novel technologies and tactics.
The human devotion to understanding and adapting to modern space warfare stunned the staid Council races. For hundreds of years, they had lived behind the secure walls of long-proven technology and tactics. The Council regards the Alliance as a “sleeping giant”. Less than 3% of humans volunteer to serve in their military, a lower proportion than any other species.

While competent, Alliance soldiers are neither as professional as the turians nor as skilled as the asari. Their strengths lie in fire support, flexibility, and speed. They make up for lack of numbers with sophisticated technical support (V.I.s, drones, artillery, electronic warfare) and emphasis on mobility and individual initiative.

Their doctrine is not based on absorbing and dishing out heavy shocks like the turians and krogan. Rather, they bypass enemy strong points and launch deep into their rear, cutting supply lines and destroying headquarters and support units, leaving enemies to “wither on the vine”.

On defensive, the human military is a rapid reaction force that lives by Sun Tzu’s maxim, “He who tries to defend everything defends nothing.” Garrisons are intended for scouting rather than combat, avoiding engagement to observe and report on invaders using drones.

The token garrisons of human colonies make it easy for alien powers to secure them, for which the Alliance media criticizes the military. However, the powerful fleets stationed at phase gate nexuses such as Arcturus are just a few hours or days from any colony within their sphere of responsibility. In the event of an attack, they respond with an overwhelming force.

Alliance Military Rank

The following table represents the list of ranks available to Alliance soldiers and their corresponding rank cost in GURPS rules.

ENLISTED
Serviceman 3rd Class/Private 2nd Class Rank 1
Serviceman 2nd Class/Private 1st Clas Rank 1.2
Serviceman 1st Class/Corporal Rank 1.4
NCOs
Service Cheif Rank 2
Gunnery Cheif Rank 2.2
Operations Cheif Rank 2.4
OFFICERS
2nd Liutenant Rank 3
1st Liutenant Rank 4
Staff Liutenant Rank 5
Liutenant Commander Rank 6
Staff Commander Rank 7
Captain/Major Rank 8
Rear Admiral/General Rank 9
Admiral Rank 10
Fleet Admiral Rank 11

Vocational Code Designation

Your vocational code represents your duties and your competence at that duty.

Each level of competence past 1 costs 1 level of Reputation (limited to Alliance Military Personnel – A Large Class of People worth a x1/2 modifier). In addition, if you have a designation of N, gain an additional 1 level of reputation (limited to Alliance Military Personnel). Finally, if you achieve the designation of N7, it becomes known to Almost Everyone for a x2/3 modifier.

Frequency of Recognition will depend on how broadcasted or veiled your deeds were.

Also note, this should be accompanied by an equal negative level of reputation for the criminal underworld (who always count as a Large Class of People worth a x1/2 modifier).

A – Adjutant- Administration, manages personnel records, also involving public, colonial, base relations, bands, newspapers. Personnel Service

B – Infantry- Self explanatory, ground troops, mechanized infantry, “Marines”, drop troops, other wide range Infantry jobs that aren’t covered in another vocation.

C – Command & Control- Authority and direction in a unit. Unit level staff. Also technology and methods research in the same. ie. Specific ways of dictating orders. Non-specialized officers.

D – Aviation- Atmospheric and Space, fighters through capital ships, pilots and navigators.

E – Medical, Dental, Nurse- Combat Medics, Doctors, Dentists, ENT, Nurses

F – Finance – Accountants

G – Engineers- Combat Engineers, Ship Engineers, Base Builders, Architects.

H – Armor (Cavalry)- Big tanks to fast scouts, ground and semiground (hover) vehicle pilots and crewmen.

I – Intelligence- Cryptography, photography, dealing in information, psychological warfare. counter-intelligence, counter-counter-intelligence. Protection of Alliance data assets.

J – Judge Advocate- Internal affairs, lawyers, rule makers.

K – Naval Warfare- Specialists in space tactics for combat between ships, knowledge of ship weapon and operating systems, their limits, and when they can be broken. Mainly larger “fleet” vessels.

L – Quartermaster and Transportation- Equipment and getting it there.

M – Electronic Warfare (VIs, Drones, Electronic Warfare)- Warfare either without guns or without human lives at risk. Does not overlap with Intelligence or Computers and Technology.

N – Special Forces- Any unit deemed unique, temporary, or with a special mission.

O – Ordnance (Missiles, Nukes, etc.)- Maintenance, operation, and safety of non-traditional warheads, special ammo types, small-arms to large ship weapons and missiles.

P – Artillery (Space and Ground)- Capital ship weapons, ground artillery.

Q – Computers & Technology- Non-combat computer systems and automation.

R – Hazardous Materials and Environments- Biological weapons, hazardous environments, specialized equipment and training.

S – Signal (Communications)- Traditional and nontraditional methods of message sending, maintenance of message sending equipment (modern day radio operators). Develops current codes.

T – Biotics- Researchers of Biotics

U – Military Police

V – Research and Development (Ground and Space)- Overhead department for research of weapons, armor, ship systems and devices, nonspecific (ie. No/little medical research)

W – Planetary Defense- Systems, tactics, and equipment for planetary defense.

X – Chaplain

Y – Training Command- Mix of all commands, responsible for training of basic enlisted, and officer cadets. Research into teaching methods etc.

Z – Yeoman- Secretaries and Assistants to ship captains and other officers (especially on larger ships). They are responsible for handling mundane requests and filtering and prioritizing information to their superiors.

(Taken from here.