Well, I asked on N!tmod forums, but nobody responded. Anyway, I'm sure I've seen the dynocounter script working on NQ servers.

Maybe try with the original one by Necromancer?
http://gs2175.fastdl.de/Lua/dynamitecounter.lua

There is a part:
Code:
if et.trap_Cvar_Get("gamename") == "etpro" then
	CHAT = "b 8"
	POPUP = "etpro" 
else 
	CHAT = "chat" 
	POPUP = "etpub"
Perhaps the script will work when you change "etpub" to "nq", but I didn't test it.