not sure if this is known or not and it sure aint major, but i noticed an occasional (perhaps reproduceable) bug when building as engy. If you go to place an mg or ml or cam/radar and you cancel it before placement (ie you can see the green/red model) and then you try to to build something else (ie if you cancel an mg and then build a camera) the model is shown incorrectly. sometimes it'll show the mg and a camera model or sometimes just the mg, even thou you are building a camera. really weird but definitely happens. hope that makes sense. only seems to happen if you cancel a build (like if you clicked the wrong thing to build. cheers
it also occurs when you die while placing the models or sometimes if you try to place a model but its obstructed and then change to a different model
I often get a model in a model. When placing anything I always see an amo box in what ever im trying to place. Doesn't bother me a whole lot except in times of hectic fighting when im trying to place something like a camera I cant see the camera so I have to make sure thats what im placing.