We should have a wrench item.
Wrenches can be used for many tasks. One can be repairing a vehicle or a defence box. Other use can be contruction. In set parts of iricia you can build REAL defence walls which have Hp and even defence towers with guns on top. you can only build in set places. These places are around most bases and usually at the places where you can access the area on foot. Meaning that you'd most certainly need that wall destroyed unless you had a jetpack.
You've all seen those fps games like farcry, you know what i am talking about.
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Hmph..
What are you looking at?
(Squadron Commander Chris Steele)