Iomen is the master of this. It's frustrating! BUT, I started doing this more, too. Especially when BOTs are on the server. Let them go ahead and flush out the campers.
Ok so tactics - U may not know this kipkat (as u only play med) as u run off healing urself, but playing engi, you need to get to objective with as much health as possible, to build bridge, fix tank destroy barrier etc. When an engi take damage, u have to take that to the next fight and the next till u get to obj, so I use players, bawts, smokescreen wotever to keep as much xp as possible. I cant run off and