That aggressive AI is something of a double edged sword, however. Many of the problems that affect competitive multiplayer matches are strangely still present in Onslaught. Helicopters in particular remain suprisingly overpowered, and the AI deploys them mercilessly. I watched more than one team fall in seconds to helicopter attacks, the entire team decimated by AI pilot/gunner teams. It probably won't surprise dedicated Bad Company 2 players that this is most pronounced on the re-lit Atacama Desert stage released with Onslaught, and choppers are also just as troublesome on the tweaked iteration of Isla Innocentes as they are in competitive multiplayer. The long-awaited balancing patch that released shortly before Onslaught hasn't done enough to balance the air-to-ground dynamic in Bad Company 2 - hopefully DICE will do more tweaking sooner rather than later.

In some ways, Onslaught mode also just feels a little tacked on, and the seams are showing where DICE has assembled it from cut up and repurposed assets. This is particularly apparent with the endlessly respawning enemy troops: you can often walk up to an area on each map and watch as new troops magically materialize from thin air and just don't stop.

Finally, while it may be unreasonable to have expected UI improvements in optional DLC like Onslaught, it's still disappointing that you can't actually exit an Onslaught lobby from the post-game screen. It's a real inconvenience waiting for the next match to start before I can quit to the main menu (unless quitting to the Dashboard or XMB appeals to you), and it would have been nice to see some kind of fix to that here.