"There are noise suppressors." Or you could just be so far away it doesn't matter if someone hears it. The person is dead and anyone nearby has no idea what happened. "Most guns aren't for sneaking around."

Blaine gave a slight shrug of one shoulder. "Explosives take care of some of those. Armor piercing bullets are another. We don't have force fields quite like these, so other than cutting it off from its power source I can't say much about it. I do understand having no idea what to expect. This is in my future as well, but when we go into the past it's a totally different thing as well. I guess I'm just better equipped to deal with changes like that, since the technology isn't so far off for me. It's at least familiar in some way."