Apologies if this is a stupid question.

Just got Space Marine Pack 1 and there are cards I dont recognise, They have a picture of the space marines of a particular team, one above the other, with the team symbol between them: Ther's a card of this type for the two new teams plus one for each of the original six teams.

What are these used for ?

They replace the Teamtokens of the Basegame, so each player can draw a random team (including the new ones)

They take the place of the tokens for the combat team you are using. they come in real handy. i still use both of them to play death angel.