Some of the older gear may not have their features because I added mod capability to gear after some of the books came out. Anyway, I added the two mods to the ECM-598 backpack (from Enter the Unknown), so it'll be in the next release.The ECM medpac found in Dangerous Covenanents doesn't list its mechanical benefit of reducing the difficulty of all rolls to heal critical injuries by one.
Oops! I was thinking of the cerebral stabilizer in Dangerous Covenants.