2Fort

This level is really hard for me. Seriously. Any tips for offense heavy here? I either get sniped or I get mobbed by 5 soldiers at a time

Don't jump off the balcony when you're leaving your base, easy target for snipers. When you're running towards the enemy base across the bridge, fire your shotgun at the enemy snipers to distract them from your big slow head. If there's too much action going on on the bridge and you're medic-less, take the sewers and flank the enemy as you come out of their base, help take them out and allow your team to get across. If you're faced by a lot of soldiers and have no medic or any other team members, get your shotgun out and fire at them as you run backwards to your base, alone you won't be very useful against all those rockets. If you're trying to take out an sg with a medic, crouch as you fire, helps stop you from being pushed back. That's all I can think of right now, hope it helps!

I always go on the bridge and crouch.
That way snipers cant get me due to the roof and the sides act as a barrier.
Hold down secondary fire and let it rip whever ever someone comes on the bridge.