Spawn as a "ghost" for 1 second? Spawn problems

I was just thinking of an idea for spawn problems. I used to play another terrible game (not Halo 4) called… Diablo 3. When you spawn in that game, you’re a ghost for about 1 second, which allows you to get to a safe spot in battle before you’re alive again.

I was thinking, when we get our spawn designation, particularly in SWAT, it would be cool if we were a ghost/composed Spartan for about 1 second to duck or hide behind something. Whether or not enemies can see your ghost is up for discussion.

Just an idea.

Maybe not for arena, but I see this being a useful idea for Warzone, where getting spawnkilled after spending all your req points on a laser or rocket launcher is aggravating.