Most of the times when playing a push match the majority prefer defending because its satisfying to get a good position and get a lot of kills.
For attackers its hell because the defenders have way too many hiding holes to choose from and way too many good spots to take. So there are 2 ways to fix this:
- Take away some of the spots on the defending team.
- Give the attackers more "safe" routes to choose from or give them more cover.