Warband 1
Fimbul on warg
10 hunter orcs

Warband 2
Sharku on warg with shield
10 uruk hai berserkers

Warband 3
Gundabad Orc Captain with shield
10 Hunter orcs

Warband 4
Orc Shaman
4 Morgul stalkers

Total: 600pts
might: 9
models: 38

If your going for the 2 attack str 4 models, then honestly Hunter Orcs are much better to spam. You will get alot more of them and with Fury, they competely remove one of thier main weaknesses. Defense is another weakness (which is negated a bit by fury) but with double the numbers of models since they are half the cost of berserkers, this wont be an issue if you die in droves.

made the changes..... I did got over 55pts was finding off so many berserkers in 500