TNM is a huge singleplayer mod for Deus Ex based on the gaming community, finally released after 7 years of development.
The napalm launcher may not be quite as efficient at setting things on fire as the flamethrower, but it's very good at creating quite a lot of chaos very quickly.
I found it to be a bad investment, I used the Flamethrower and had a ton of fun. :D
I used the napalm launcher for... Hm...
Well I killed a board guest. >:D
Okay, two board guests... >.>
Personally I see it as being a bit of a trap/strategic weapon. Take for instance:
You see a guard outside a security room just mucking about on a walkway above you. You COULD:
Just shoot him and shoot anyone else the responds to the noise.
OR:
You could hit him with a big glob of napalm, have him run into the security room to hit the alarm, and then boom! everyone inside is now on fire.