From StrategyWiki, the free strategy guide and walkthrough wiki

Primary Objectives:

• Intercept the V2
• Flank the MMG
• Secure the two farm-houses
• Use the mortar to hold off Axis reinforcements
• Overrun the MMG with Baker Company

Secondary Objectives:

• Hold the village
• Radio HQ for new intel (Campaign only)
• Retrieve strike co-ordinates
• Neutralize the SS officer stationed on the farm
• Repel counter-attack
• Hook up with Baker Co. survivors
• Neutralize the SS officer stationed in the village

This is a fairly hard level. You need to pace yourself if you want to complete this mission. Look out for blue safes and the radio to tune. Also try to find german officers who might be hidden in the village and the farm.

To use the mortar might be hard when you are getting shot by the germans but you'll pick it up quickly if you follow the on screen displays on how it works. Move / to set the distance on where it's going to drop, tilt to move the mortar left or right and swing up to fire. For the Wii Zapper, move / to set the distance, / to move the mortar left or right and to fire.