I did this playthrough with the good karma for two reasons. One of the boosts from having full good karma is the ability to recharge your electricity when you hit humans with bolts and there is a rapid fire bolt upgrade.
1. As soon as you can, use UGC mission to get all the blast shards. Searching '305' will give you several missions to choose from. This also helps with the blast shards trophies.
2. Stay high. Use the tops of buildings to get around.
3. Some mission will feature faction infighting. DON'T INTERRUPT! Unless you decide to join in, the infighting factions will ignore you.
4. Don't be afraid to run away and regroup. Charge often. The main reason I died was because I ran out of electricity.
These should help you get through the hard playthrough. It is not a hard game as long as you think things through and keep track of your electricity,