From historical records, research, and looking at pictures of the original Burnside Bridge. I would suggest the following: clear out some of the trees leading up to the bridge on the Union side of attack so that the Confederate can see them better coming down the road as they historically did. As for on the Confederate side on the left and right side of the bridge have slightly fewer bushes and trees and stuff for the unions to hide behind. Doing stuff like this will slightly alter how some people approach the bridge.
Historically speaking there were three ways of them assaulting the bridge. One of them was a further upstream assault which failed. The other one is going straight up the road and trying to push across the bridge which also failed for the Union. The 3rd assault which finally overran the Confederate positions was a head-on frontal assault made by the same numeric number regiments the 51st New York and 51st Pennsylvania. Just as a suggestion for the devs to put into play.
Here is a few pics of the bridge showing how there is not a lot of bushes. They are all taken the same time of the battle.
Personally, if anything was done I would say mainly to remove some of the brush on both sides of the bridge. This would make it where the Union can be seen coming up the road and the Union can also shoot at the Confederates better from their side of the river. Now as for all the bushes and stuff on the Hill the Confederates are on I would almost say to add more but it is good at the current point.
Why would this make the battle better you ask? Well, for one it would make the battle harder for both sides. The Union would be able to have a slightly more clear view of the Confederates but the Confederates will have the best view of all since they are on a hill. Would this change the outcome of the battle sometimes yes?
As for everyone else, what do you guys think from a historical standpoint?