Even the newest doctrines have their problems, with some being rather useless.
Take for exampleRecon Support (waaaaay MP-expensive call-in, Forward Observers being crap, I&R Pathfinders only good for the artillery), Encirclement (Sprint is nice, but everything else is pretty gimmicky- e.g. Break Supplylines won't even destroy a cache) or Tank Hunters (a 100-munitions upgrade for the ability to get some MP and Fuel from vehicle wrecks (of which there usually isn't going to be many around?, four abilities that are meant to do the same thing- kill light vehicles).
