You do realize that isn't true at all right? This is trials, not some shitty Crucible round. If you run the gauntlet of the enemy's defense and get close enought to hit them with a shotgun, you earned it. I don't run shotgun in Trials because it plain is too hard to do exactly this. Doing a rush strategy can be effective. But there are plenty of counter play strategies... most notibly running really strong short range primaries like red death or hawksaw and using smart grenades like the Sunsinger's firebolt. This is coming from a guy who did go flawless this week and didn't use a shotgun when he did it.