Atm I try to replace some HL² lamps with the new ones in city conflict. Is it possible to give them a glowing texture? Especially the street lamp with the stand looks odd with a light entity on it, because the lamp will be just illuminated and dont light itself. This looks odd.
I have an other question. Are the effects for the skybox in the alpha already and when yes, where can I find them (which entity is needed for them)?
The new lamp prop ( models/props/prop_lamppost_2.mdl ) should have it's lamp self illuminated. I'm updating the old one to include lit and unlit skins in the next patch.
You should use the info_particle_system entity to add environmental particle effects, the systems created for EX by VMan are in env_effects.pcf . You'll need to launch the game in tools mode so you can get the actual effect names wanted by the entity.