Yeah, it was kind of a simultaneous post. Your selection doesn't look as if you've got many options. You're lacking midfielders (who isn't?), so you could only play 4-3-3. But I think that road leads to nowhere...
About the tactics:
-man marking: I guess that that's a bit stupid. In other games (you know, CM4) you play MM when you play less relatively defenders. If the opponent has 2 or 3 strikers, then you play MM with 3 defenders, not with 4. So, I say, play zonal.
-wide play: whatever. I really don't know.
-cross balls: I think this doesn't work. Try short plays and train on passing.
- attacking: hm, like you said before, this won't produce more goals...
- agression 60%: it'll only tire your players out.