This isn't a guide, but rather a tip.
In Campaign mode, and campaign mode only, you may actually save after each turn from the start menu. If a turn you play, or the CPU plays does not go as well as you want, or ends tragically you can hit the Xbox Guide button and quit out of the game; then just continue the campaign from your last "Quit and Save".
If you're horrible at Blood Bowl, you may want to play it turn-by-turn; especially in the early levels as well as levels with objectives. It helps to get the rolls you need/want.
The other thing is, whenever you level any player, make sure you level them with the "Block" ability. This helps in winning your rolls or at least ending in a draw as to not end your turn.
There are 15 matches total.