People often times misuse or underuse the wires. Sometimes players think they can erect fortifications rivaling the Great Wall of China from wires. And other times, people think that wires are effective as covers: sometimes they are, but usually not in my opinion. Instead, they are largely useful in obstructing enemy APCs or other vehicles.
PIC A. the red blocks are wires.
In picture A, I show how people usually use the wires to protect firebases. They usually just place the wire to block the vehicle enterance. This is effective in keeping the enemy vehicle out of a firebase compound, and that's fine. But its weakness is demonstrated in the image: the enemy APC can shoot inside through and cause havoc. The following is what people do less frequently.
PIC B
In addition to the standard wire obstruction which you can still see unchanged in PIC B, the road that moves above the firebase compound should also be blocked to stop enemy APCs from doing drive-by raids of the firebase by stopping the enemy vehicle from firing inside the compound through the main enterance opening. You can also, if it doesn't obstruct your own forces, block all the roads surrounding the firebase to stop the enemy APC from doing carousel rounds around the compound (the purple wires represent this choice of action). But remember that wires can expose the location of your firebase, so don't be too generous with them either. IMO.
And lastly, remember to use covers provided by the map props to shelter the firebase. This is obvious, but sometimes I've seen this elementary stuff disregarded by our battlefield da Vincies.
