1. What would be a Chaos March world that got hit by the CC but there's not much info in the canon material about it?
None, however, the Tikonov Reaches may be a better bet. Worlds in the Reaches are Algol, Buchlau, Kansu, Azha, Slocum, New Hessen, Alrescha, Ynagtze, Hamal, Bharat, Tigress, Achernar, Tikonov.
2. What CC unit(s) hit said world?
None did, it was CC sponsored Zhanzheng de Guang Terrorism units, but there may have been small unit merc assistance?
3. Did that unit have its own dropship and jumpship support or was it hired merchantmen?
See above
4. Does anyone have a list of CC mech-class weapon systems manufacturers handy?
See MadCap's response and his Objectives 3067.
5. What would be the pay for a small security contract for a merc lance in the Chaos March?
Don't table top or merc it so no idea.
6. What would be the pay for a big security contract for a merc company in the FC before the FedCom Civil War?
As above
7. What was the city or area for off the books contracts on Outreach (if there was one)?
TempTown in Harlech itself is the seedy underbelly of the merc treade there.
8. I can't remember the different DC intelligence groups and units so what were they and what were their areas of expertise?
ISF
Mononokete ("Ghost Hands"): Covert Operations Division
Mokonete ("Guiding Hands"): Internal Security Division
Koe No Ryu ("Voice of the Dragon"): Propaganda Division
Metsuke ("All Seeing Eyes"): Intelligence Gathering and Analysis Division
Draconis Elite Strike Teams
Ryu no Musukosan ("Sons of the Dragon"): Not an official branch of the ISF, this group of agents was formed by Subhash Indrahar
9. I can't remember the different LA intelligence groups and units so what were they and what were their areas of expertise?
Lohengrin: Counter-terrorism division
Propaganda
Norns: Norns (named after the mythical Nordic beings of fate) Is subdivided in an active intel (agents) gathering and passive intel (coms) department.
The Diplomatic Guard
The Diplomatic Corps.
Loki: State-sponsored terrorist unit
Bodians: Training, education, and deployment of operatives
Molehunters: Counter-espionage
10. What extremely loyal LA units were the first to be involved in the FS during the FedCom Civil War but don't have much canon material floating around about them?
All were outlined in FM: Lyran Alliance, so your best bet might be to use a non-listed conventional brigade with a few independent merc companies attached.
11. What was the name of Theodore Kurita's rich businessman cousin?
Chandrasekhar "Uncle Chandy" Kurita
12. What would be the size and makeup of the planetary militia on Hickok?
Some infantry, no more then a few regiments, maybe and armour battalion or two and if they are lucky, a Mech lance or two. Additionally, elements of the Mayetta DMM may be posted there, which had in FM: FS 1 Mech, 1 Tank, 6 Infantry Regiments and an Aerospace Wing. The unit is a bit of a joke and rife with corruption.
13. What would be a running-for-our-lives jumpship path from Hickok to the OA? (Blacknova, I'm looking at you.)
Fastest path, avoiding all major commands is Hickok>Urich>Greenley>De Berry>Hainsville>Dormandine (OA).