A Spartacian Army circa 73-71 B.C.E.

10% Gladiators. LAI, LHI High morale javelin, sword.
20% Armored War bands HI (from front only) High morale javelin, sword.
30% War bands MI High/Average morale javelin sword.
20% Camp followers LI Poor morale javelin used to thrust
8% Herdsmen LI Average morale javelin
1% Herdsmen LI Average morale sling
1% Cavalry LC High morale Various*
*Cavalry is never mentioned in action, so it must have been used more for scouting. If the separate forces of Ciixus' Germans or Castus and Cannicus' men is desired, replace the gladiators with armored war bands, add 1% to thejavelin anned herdsmen..

Romans 73-71 B.C.E.

*Veteran Legio HI High morale pilum, sword
30% Under arms Legio HI Average morale pilum, sword
70% Newly levied Legio HI Poor morale pilum, sword
5% Horse HC Average morale javelin, spear.
*Vets can only be used in 71. Then up to 50% can be vets, 50% Under arms. Horse cannot be used till 71.

More The War against Spartacus L. Anneus Florus "Epitome of Roman History" Book II. VIII. Bellum Spartacium

Background and History
Building and Wargaming Gladiator Armies
Order of Battle