Overall the game is outstanding, and so is the upcoming sequel, and it is a great game to play with friends.
Part I. Send units to guard friendlies
1. Select a unit using the gameplay screen
2. Go to map view
3. Highlight the friendly unit and press 'A'
Note: A green line should form in-between your unit and your friendly unit
Part II. Give units to teammates
1. Select a unit other than the one you want to give away
2. Go to map view
3. Highlight the unit you would like to give away
4. Click the left thumbstick and select the username of the receiver
Note: You can give units to people who are in spectator mode (people who were killed or wiped out of the battle)
Part III. Pericopes and Binoculars
1. Position your submarine using the up and down buttons on the d-pad so that it is just below the water
or
If you have a ship ignore the above and skip to step 2.
2. Press 'Y'
3. Use the left thumbstick to zoom (press up and back)
Part IV. Orders
1. Hold 'X' when viewing a unit
2. Use the left thumbstick to select your order
Note: Regroup - Brings your planes back into formation; Attack - Attacks the target