Ok...where do we find the info on the ARC-1A and RFL-1N?
You dont.
Yet.
They are listed in the Reunification War sourcebook MULs.
No official stats, specs and from the sounds of it, artwork. I pray Mr. Nelson is given the task of creating the artwork as he's done so well with the other primitives.
The ON1-C is alluded to in the orginal 3025 fluff. No LRM system, Class-5 autocannon IIRC. I have my own theories/designs of its stats.
IAMCLANWOLF, The Orion is to me what the T-bolt is to you. I don't think it needs any major re-work and the SRM-4 is in the LA, not LT! One typo and whole slew of bad decisions and confusion since then.
To many interpretations mess with the Orion's classic slighty off center beady-eyed cockpit. The original Ral Partha mini is perfection IMNSHO.
I hope there is another Primitives TRO in the works, and you (IAMCLANWOLF) are once again the artist for the mechs. Was kinda hoping for a surprise at GenCon, but alas it doesn't even seem to be on the horizon. :(