"1. What does razor or concertina wire mean to you? A single looped length? Or 2 or 3 layers of strands?:
Each 'coil' of concertina wire is 2 loops of wire, interconnected. Its tough to cut and catches on to clothing and just about everything else. If its a single coil sitting on the deck, it only stands about 30" high and can be hurtled or pulled easily. If its' properly employed it'll be at least 2 strands, staked down every 10 3-5 M, and should have barbed wire run through it.
- Razor wire is also a couple of loops of interconnected wire, but the edge is at first very sharp and slices skin and other stuff. It's very hard to work with, recover or move once installed. In US, razor wire is primarily employed for permenant employments, while concertina is used if its going to be moved. cuts.
"2. What sort of skill checks do you employ for an individual to work there way through/over wire? What are the chances of injury or becoming tangled up?"
-Most important question to ask, is the obstacle covered by effectuve observation/fire. The most important thing that will determine the success is the distraction, obscuration or suppression of the overwatch element.
-I'd say breaching a wire obstacle should be an Easy CbtEngr Task (assuming wire cutters, assualt ladder, or door) or a Difficult agility task, assuming your trying to work through it without tools or leaving trace.
- Making a improvised bangalore torpedoe to blow a breach should also be easy cbtengr task, but requires explosives and will be loud when it gos.
- The fast way is to use assualt ladders to bridge and flaten the wire. A wooden door, liberated from nearest building or a heavy tarp can be used as well. This will make noise and likely be visible since your going over the top.
- The slow/deliberate way is to cut the bottom strings with wire cutters. A second man wearing heavy leather gloves holds the wire on either side of the cut so it does not recoil back causing noise and getting caught on stuff. Should be 'previously disturbed with 'grappling hook' before getting close in case of boobytraps. You can also try to dig under.
3. What sort of skill checks do you employ for a vehicle to work there way over wire? What are the chances of it becoming bogged/tangled up?
- Depends a lot on how its employed. Even many wheeled vehciles will drive through improperly employed wire. Tracked vehilces will run over most wire obstacles, at first. Concertina and barbed wire wrapped around the road and drive wheels will likely (75% chance?) stop most tracked vehilces within 200 - 1100 M (1+1d10 x 100m), unless the crew stops and spends 10 min - 1 hour clearing the tracks.
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