A Rare armor incorporates a modification from group 1 exclusively, an Epic weapon encompasses two modifications: one from group 1 and one from group 2, and a Legendary weapon features a modification from each of the three groups.

Please note that only one modification from each group can be applied to a single item at any given time. Attempting to add a modification from a group where one is already present on the item will result in the replacement of the existing one.

Group 1

001336BE - Combat Veteran: -15% damage from Human enemies.
001336BD - Beast Hunter: -15% damage from Alien enemies.
001336BC - Technician: -15% damage from Robot enemies.
00133699 - Sturdy: -15% incoming melee damage.
0013369C - Ablative: -15% incoming Energy damage.
0013369E - Anti-Ballistic: -15% incoming Physical damage from ranged weapons.
001336C6 - Bolstering: Grants up to +100 Energy resistance and Physical resistance, the lower your health.
001336C1 - Chameleon: Blend with the environment while sneaking without moving.
000690B0 - O2 Boosted: +20% oxygen capacity.
000690AE - O2 Filter: -25% oxygen consumption.

Group 2

002EDE4E - Fastened: +20 carry capacity.
00060293 - Resource Hauler: Resources weigh 25% less.
00060295 - Weapon Holsters: Weapons weigh 50% less.
000710F6 - Liquid Cooled: +25 Thermal Resistance.
000710F7 - Galvanized: +25 Corrosive Resistance.
000710FA - Antiseptic: +25 Airborne Resistance.
000710F5 - Leadlined: +25 Radiation Resistance.
000C9A43 - Auto Medic: Automatically use a med pack when hit and health is below 25%, once every 60 seconds.
000710FD - Acrobat: -50% fall damage.
000690AF - Analyzer: +10% damage to scanned targets.
002C43DA - Hacker: +2 max auto attempts that can be banked while hacking.

Group 3

000BE542 - Mechanized: +40 carry capacity.
000BE540 - Sentinel: 75% chance to reduce damage by 50% when standing still. 00059AE8 - Mirrored: 4% chance to reflect attacks.
0006029D - Repulsing: 5% chance to disarm nearby attackers.
00002983 - Incendiary: 10% chance to ignite nearby attackers
0006029F - Reactive: 10% chance to stagger nearby attackers.
002D01A2 - Peacemaker: Rifles do 10% more damage.
002C43DB - Sensor Chip: +20% accuracy while firing on the move.
002C43DC - Headhunter: Deals +25% damage on the next attack after hitting a target's head.
002EDE4F - Assisted Carry: Drain 75% less O2 when running while encumbered.
002EDE59 - Armor Plated: -10% incoming Physical,Energy, and EM damage.

You have the option to employ the console for the addition or removal of these modifications from an item in your possession.

To begin, place an item on the ground, subsequently activate the console, and select the item to retrieve its in-world ID code. If the displayed code does not match the header WEAP, scroll your mousewheel until the entry begins with ARMO.

Next, input one of the following commands using the 8-digit alphanumeric ID code for the item and the 8-digit alphanumeric ID code for the modification (please note that the square brackets in the example command are for clarity and should not be included in the actual command):

Add/replace a mod [ID code].amod [ID of mod]

Remove a mod [ID code].rmod [ID of mod]

Posted for my personal reference copied from KnightShadePrime‘s post on reddit