Use the "camera" pannel to control the camera, or click & drag the map when the CTRL Key is down.
To create a tower, select the icon in the panel and click on the green zone of the map( grass and tree )
6 kinds of towers are available :
-Tower with Air to Ground Missile: A tower like gatling,multi-purpose, it attacks as well tanks as helicopters.
Reletively cheap, it isn't very strong or resistant.
However, it is very usefull against a group ( like white beans).
-Tower Anti Grounded: A tower with laser pulses, who concentrates its beam on a landed enemy until his destruction.
This weapons makes a lot of damages among enemy troops, but is vulnerable at Air attacks.
It's preferable to didn't know how you have purchased this technology, isn't it ?
-Tower Anti Air: A AAA battery capables to reduce to ...