Even though the Arcade Mode and the Campaign Mode is the same, there's bound to be things that might be vital to finish the game and some pointers that will help you finish the game especially when it comes to using weapons and the difference between Wii Remote and Nunchuk and the Wii Zapper.
Beach
Primary Objectives:
- Get to the bunker at the end of the beach
- Use a grenade to blow the ammo cache
- Breach the sea wall
Secondary Objectives:
- Steal the guards' duty roster
- Retrieve shipping forecast
This level will help you familiarize with the game. The only thing you need to do to get a gold achievement is to destroy the blue safe with your gun to retrieve the shipping forecast and find the duty roster in the barracks.
Port
Primary Objectives:
- Destroy the German U-boats
- Find a radio and contact OSS Control
- Secure the docks and advance to the city
- Find a way into the sub pens
- Assault the guardhouse and bazooka the fuel tank
- Find a sniper rifle and soften up the guardhouse
Secondary Objectives:
- Hold your ground against reinforcements
- Intercept the U-boat shipping manifest
- Cover Baker Company with the Panzerschreck
- Eliminate the U-boat Commander
This level is a little harder. When you get to the U-Boats, to set the explosives, tilt the 
on the right side and when it's in full circle, flick up to complete it. Same with the Wii Zapper.
The sniper might be hard to use at first. Aim with 
, tilt the 
left or right to adjust the zoom and 
to fire. For the Wii Zapper, aim with 
, zoom in and out with 
/
and to fire.
The bazooka requires a unique method. You need to turn the upside down to aim, move the aim with the 
and fire with . For the Wii Zapper, you don't have to turn that upside down but you have to aim with , move the Wii Zapper to move your aim and fire with .
The radio is curiously the easiest to deal with except you only have 30 seconds to find the female officer who is saying "Come in, come in." You just need to tilt the left or right to change the frequency and the to lock on. The Wii Zapper is more easier, you just need to move it 
or 
to change the frequency and the to lock on.
There's a blue safe somewhere in the warehouse where the U-boats were and the U-Boat Commander could be in there. The Arcade version will have a yellow marker on his head so be ready to react and shoot him before he disappears off screen.
City
Primary Objectives:
- Destroy the East and West anti-aircraft guns
- Escape the city
- Destroy the rooftopanti-aircraft guns
- Find a radio and contact OSS Control
Secondary Objectives:
- Obtain Axis troop deployment plans
- Disable Axis officer car in the North District
- Disable Axis officer car in the South District
Sewers
Primary Objectives:
- Find a Radio and contact OSS control
- Sabotage underground shelter
- Rendezvous with the Rangers at the sewer exit
- Survive upper tunnel ambush
Secondary Objectives:
- Sabotage the generator
- Uncover the scientist interrogation transcripts
- Retrieve the POW list
Monastery
Primary Objectives:
- Cover the squad as they secure the Courtyard
- Take out Axis forces in the Monastery
- Destroy the German convoy
- Find a way to let the squad into the chapel
Secondary Objectives:
- Protect the Graveyard from the Axis counterattack
- Find the classified development schedule
- Protect the motorcade from the Axis counterattack
- Find a radio and contact OSS Control
- Retrieve Uranium docket
Bombed City
Primary Objectives:
- Meet with Captain Lasry and help extricate his intel
- Rally with Baker Company on the other side of town
- Find your way through the minefield
- Defend against Axis counterattack
Secondary Objectives:
- Take of SS agent
- Rescue stranded squad
- Retrieve POW records
- Find a radio and contact HQ
Village
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
- 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
Base
Primary Objectives:
- Navigate the Minefield
- Destroy fuel tank
- Infiltrate V2 Facility
- Find a way to sabotage V2 Production
- Escape
- Use a sniper rifle to repel the assault
Secondary Objectives:
- Defend against rear attack
- Radio OSS Control
- Destroy anti-aircraft gun
- Steal the warhead blue-prints