Im gonna tell how to craft!
In Global Agenda exist 5 crafting skills:
-Armor Modifications
-Weapon Modifications (mods like [ddd] or [ppp])
-Strikeforce Crafting (AvA stuff like armored beacons or dropships etc)
-Consumable Crafting (repo androids or lating regenerations etc)
-Special item Crafting (pets)
First you need get blueprint in Prototyping Center in dome city (you can't do anything without it), if you have blueprint now time to get components. You can aquire components by doing PvE (Special ops, Raid, Dailies or farming).
If you have all things you need you can craft!

Mods are increasing stats of Weapons, turrets, Bionics, etc.
Stats like pet damage, weapon healing or health of turret/drone

Crafting mods:
1)Go to Prototyping center and push "Use" button near Crafting
2)Select mod which you want to make
3)If you have all requiered components then Push "Craft" button

Quality of Mods:
-Uncommon ("Green mod" adding 1 stat (letter))
-Rare("Blue mod" adding 2 stats (letters))
-Epic("Purple mod" adding 3 stats (letters))

To make Uncommon mods you don't need any crafting skill
To make rare mods you have to first increase your crafting skill to 100 by making uncommon modsTo make Epic mods you have to first increase your crafting skill to 200 by making rare mods

^^ You have to do it in Armor, Weapons modifications. Strikefroce crafting (!!Here you making AvA items not mods!!), Consumable but Special crafting is just for Pets as i said

SPECIAL CRAFTING
Its expensive crafting because you need 2 thigs:
-Pet Blueprint(100 tokens)
-DNA Binding kit (costs 30K tokens!)
-Pet MOLD (you can buy 1 in Auction House or make if you have blueprint - drops from Double Agent and Ultra Max security-)
-Pet MOLD* (craft) need JUST Mold blueprint and crafting crystal (2000 tokens)

Getting components is easy thing, you just need to play some PvE.
Another thing is with Consumable crafting. To get:
-Arc Battery
-H4 Gel
-Nium Core
-Argos Super Core
You need tu open your inventory by "i" button, search for weapons YOU DON'T NEED (if getting tokens is a problem for you then be carefull) and if you chosen a weapon then push "Salvage".
First 3 components on list you getting by salvaging a Green/Blue weapons.You can get Argos Super Core ONLY by salvaging purple weapons.