Terminator: Genisys Trailer Breakdown - 36 Things You Need To See

31. A Large Scale Assault...

The central focus of the opening sequence of the trailer appears to show Connor's forces staging a large scale assault on a fixed Skynet position with a substantial amount of artillery, including the helicopter above daubed with graffiti (reading Los Angeles among other things). Despite the rise of the machines, clearly humanity hasn't turned their back on technology in war.