If the timecode matches perfectly, you're pretty much good to go.
First select audio clips and video clips from your master camera angle to create new merged master clips. By right clicking and checking merge clips. And then select the merged clips and the other camera angles and use the create multicam sequence function.
If you are working with a well shot MCam environment (eg. A cooking show or a concert), this should be close to sufficient. For outdoor shoots where the cameras may turn off and on and where you don't need to sync up everything (eg. Brolls), we usually create stacks and to sort out what needs to be synced before syncing them.
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