New military helicopters are not any different from civil ones. They will not carry rockets or other weapons and should be used as transportation tools.
How to install addons:
- Download addon straight from your device
- Find and open .mcpack or .mcworld files that you download earlier
- Click on it to start importing into Minecraft Pocket Edition
- Open the game
- Create a new world or edit an existing world
- Scroll down to the Add-ons section and select the ones you want to apply
- Make sure to enable all "Experimental gameplay" features in Settings
Reason: Three new military helicopters has been added.