The rules of the forum forbid asking for tactics. Anyway there are plenty offered here.
If you ask how to construct your away tactic, there are some pointers:
against top teams play conservatively:
- low creative freedom
- low mentality
- low width
- counter attack is often useful
- consider giving high closing down to select players (preferably wingers and strikers)
- selectively harass opponent key players (especially those with low bravery and determination) with hard tackling and/or tight marking and /or man marking;
It is also very important to score first away from home, so if you see you are not playing well, stop the game immediately and make changes to your tactic to regain advantage.
and of course read the posts in the tactical bible on top of this forum