That's an ideal scenario mind you. You'll almost never have 30 club Saurus Warriors in range to swing unless the enemy is strung out in some gigantic conga line. It's more realistic to have the Saurus with spears instead, fighting in two ranks, just like the Warriors. So again, assuming Saurus go first, we get 60 spear attacks at 3+, hitting 40 times, but wounding 20 times now. Bites are halved because only half are in range, so 7 hit, 4 wound. 24 wounds total, 12 failed saves, reroll the 4 1's, 2 more saves. 10 wounds suffered. 25 Chaos Warriors hit back, 50 attacks, 25 hits, 13 wounds. Saurus save 4, suffer 9 wounds. Battleshock time, Warriors lose D6-1 models, Saurus lose D6-3. On average, end of combat, Saurus lose 9 models, Warriors lose 7.
The Warriors get a massive advantage if they go first though, since they take away the horde bonus. 30 Chaos Warriors will get 60 attacks, 30 hits, 15 wounds, 10 dead Saurus. The 20 remaining get only 20 attacks back, 14 hit, 7 wound. Bites give about 3 more wounds, 10 total. 5 save, one more saved from rerolls, 4 wounds suffered. End of combat, Saurus lose D6-2 models, Warriors lose D6-4 models. On average, end of combat, Saurus lose 11 models, Warriors lose 2.
So in two scenarios the Saurus come out either ahead or pretty even. In the final scenario the Warriors pretty comprehensively crush the Saurus. Given the massive points discrepancy, that's pretty damn good.
