Talk:Standing/@comment-1289500-20170110172042/@comment-73.163.145.11-20170112020115

According this wiki, you get approx 2.25% of affinity earned during the mission. Sigil only affects standing to that syndicate. So in your case, doing a Steel Meridian alert would give you:

Steel Meridian standing: 3000 + (affinity earned)*0.0225

Red Veil standing: 1500 + (affinity earned)*0.0225*1.15