for nn40s and other slow moving things just get behind them and go as slowly as you can. you can use another one for bait to keep it moving forwards. if you get too close just use the 180 thing.
awesomeness42 i was the same...then i couldnt work out how to change my gun. also the effiecency campaign is timed, so you can fire as many bullets as you like itll still go down at the same rate.
i think the servers are probs down cos theyll be testing a beta for pr3. or something similar. but pr3 is definitely coming out cos he said so and thats the end of it.
AARGH!!! on lvl13 there r 2 bridges: i make one, tested it and it works. make the other, it works. go back to the first one: doesnt work. med it. go back to the second one: doesnt work. carries on for at least 3 turns each way.