No atributes, every skill, habilities, perks, etc are purely descriptive, we will do this free form, if there are any rolls I want the players to make I'll let them know and tell them if they passed or not, but the idea is for this to be story oriented. If there's any math I'll do it behind the scene, so no experience in playing any other kind of rpg is required, you guys just tell me what you want you char to do when a situation is presented to you. Playing will require more narrative and interaction with other players trough dialogue, not so much "rolling dice".
Crew roles will not be so strict, we may have two gunners (one may have been a gunner in another tank in the platoon), you guys decide among yourselves who does what. The crew is technically not in the Army anymore, so ranks are not so vertical either, a little democracy between the group in sensitive situations could be something interesting.
The tank is an M48A5. The story takes place near the end of the Cold War, and even at that time the M1A1 was rather a novelty, even in the 1991 Iraq war many M60's were used. The fact that I decided to use a modernized version of the M48 is that, unlie the Abrahams, in a post apoc environment an old tank has much more chances of operating, a brand new M1A1 would require a lot of unavailable specialized maintainance and spares (good luck finding jet fuel for those high consuming turbine engines), an older tank would be much more durable and reliable, and easier to maintain by just the crew.
The main gun is a 105mm rifled, there is a 50. cal AA MG mounted on the commander's cupola and an M60 MG in the loader's hatch, there is also a 7,62mm MG coaxial to the main gun, if we are 3 players we could all be firing one of the tank's weapons, plus there are small arms, mostly M16A1's and M1911's for you to choose from.
Even if this happens near the end of the Cold War, for the purpose of this game the outlook of tech and uniforms will be more mid Cold War retro style. For refference: