mat_proxy = 2 ( Asus wallhack effect ) - remember once its set to 2, it needs to be reset to 1, otherwise you will get a black overlay fading in and out over your screen.
if(GetCvarValue "mat_proxy" ==2);
mat_proxy->SetValue(1);
mat_fullbright = 1 makes the map lighting full brightness
mat_wireframe = 3 makes the world and players wireframe
r_modelwireframedecal = 1 player wireframe
r_drawparticles = 1 gives whole map white walls
sv_showimpacts = 1,2,3 bullet impact for both, client only, server only
cl_showfps = 1 per second, 2=smooth displays your fps in top right corner of screen.
HINT: either bypass consistency or force the cvar
hope this helps some.