Open Air Parking and Aerial Predator

[Tai2142]

Aerial Predator - Do I have to get the cheeve in one go, or in more? If you say in one, any tips???
Open Air Parking - If I start a new game the game will overwrite the old save, or will create a new one?
When the Helicopter appears for I get the cheeve???

[S2N pickle boyz]

Aerial Predator- must be done in one go the best way to do it would be aim for the little birds and bugs in the cave part may take couple trys

Open Air Parking- make a manual save on your playthrough you want to come back to new games only save over the autosave