My favorite role would have to be engineer but when I'm playing bf3 or bf4 it all comes down to what I'm doing and the map. For example in bf3 on metro I would always use my assault class because of how close we are put together I can always count on getting some points from using my med pack and defibbing some people. I'll also use my support class in maps like that but I tend to go more towards engineer because of the damage you can do to all types of vehicles. Though I do love to use a sniper I only ever really use it if either our team is destroying the other or we have to big of a gap in tickets for use to come back. I usually just play conquest and that also has a big impact on what class I choose.
