its also possible to get through the bridge at lvl 5 even if its destroyed..as long as you dont completely break the bridge and the other end of the bridge is still connected..all you have to do is use your shotgun to strengthen the bridge's swing..once the swing is high enough jump at the right moment..then jump from the bridge while it swings high..that should give you a small time of opportunity to actually get on the other side of the bridge..as long as your timing is flawless.
if you want to be the most powerful person in the galaxy just press 55 in the 3rd box below,it should give you the "bioship",totally invinceble,no shields no health bars,just total invincibility.
well it was a bit easy in hard more,but in harder mode and nightmare mode,once the 2nd wave of zombie horde strikes,everything starts to fall down,and my food goes to zero not to mention the happiness - the main problem is the food around you suddenly lacks and i cant scout defend and scavenge at the same time,every decision you make makes things worse since when you support the other half,the half falls down. - bottomline:this difficulty is almost impossible to defeat.