Weapons and Tactics of the Niger Delta
The weapons being anything they can find and tactics being kidnapping civilians and attacking oil infrastructure. I have not read of any credible military victories. The “Movement for the Emancipation of the Niger Delta’s” only claim to fame is managing to damage an oil platform 120km offshore.



Their tactics and weapons may not be top that impressive, but their strategy is. These guys are part of why oil prices are where they are right now.
See
http://www.theoildrum.com/node/4196
for a good understanding of the significance of the oil platform attack.
and
http://globalguerrillas.typepad.com/globalguerrillas/2008/06/global-oil-unde.html
for how it fits into a larger trend.
note: John Robb’s (the person behind the global guerrillas blog) overall ideas are very interesting but I believe takes his analysis to an extreme point to promote himself.
As you can see thes guys are not lightly armed and they look like they mean business (note the heavy calibre and low calibre machine guns and the rpgs