The Red OOB T-55M

[Mobhack]

And the book cost for any of the variants in that OOB is around a hundred points for the Target-55M.

The Red OOB has low experience and morale and so the units are marked down in cost over book.

The SLR is only available for specialist formations - insurgents and mercenaries. The Insurgents have a negative on the experience, but a boost in morale. Check those out in Mobhack.

Red is merely a place-holder OOB for scenario designers to make generic soviet equipped opponents from, and not a regular nation as such. Green is a similar one, as is the UN.

From the Game Guide Historical Design Notes section:

The RED OOB, prior to the break-up of the USSR is a sort of 'Balkan' OOB, using Soviet kit. After the break-up of the FUSSR, it becomes a generic stand in for those FUSSR states which do not have their own OOB, when playing against Russia or Turkey. Playing against Poland, it becomes Byelorussia, as it does against Ukraine. Playing against China, it represents an Eastern FUSSR state, with rather flatter terrain, and less chance of urban areas. To the rest, it remains a 'Balkan' OOB. The OOB also contains generic Soviet-backed insurgents, rebels, government forces, terrorists and more.