Experienced gamer here. Huge ASl player back in the 90s.
Just skimming the rules I got a few days ago and some questions...
Here are the answers.
1. When moving, I can't see any modifiers for climbing walls, entering buildings etc. Are there any? No, but there used to be -2".
2. Cover. Is there any differential from taking cover behind a hedge or a stone building for example If it can stop a bullet it's cover (Affects shoooting) If it can't then it's concealment (Affects In Sight).