The CS:S A minor little detail to go with all those DoD:S things I've been working on lately.
Kilroy was Here spray for the HL2 Lambda decals.
Couldn't find a consistently decent Kilroy logo to use, and then I remember the default spray from CS:S. The Valve spray has the added benefit of not having any potential copyright problems attached to it like Google results. Win-win.
I've done my best to make sure the decal is properly scaled for both Lambda variants.