For the people who played this game;

1 - What use is a silo? And don't power plants kind of beat the purpose of a harvester?

2 - Your plane fights by itself, is there any way to put your guns on auto-fire as well?

*spoiler*

3 - I'm currently at the mission where your Island gets stolen by the Sentinels, when trying to obtain a level drive. During the attack, my 'big gun' gets blown to pieces. Is it possible to replace this? Because its the only thing that is effective against bombers.