Steel Police: Strategy

1. Put you base in a corner and pray to your deity that no one goes near you. You have no base bonus so really your base is only something to be defended.
2. Be patient. Keep your base well defended and try to line up modules and ranged damage when you get the chance. Here and there opportunities to do some big damage should come up.
3. If things are really going well your three mobile ranged units should be doing 90% of the damage to your enemies' bases. Do your best to keep them alive and keep them near your awesome ranged-damage modules. 
4. Like always really, do your best to avoid battling if you are in the lead. Once you have the lead your main priority should be defense. This is because your soldiers have low initiative and are generally bad at stopping enemy units who are lined up to take damage.
5. I recommend being fairly cautious with your Steel Net. Hesitate to use it on a unit that won't be killed immediately unless doing so prevents 3+ damage. The net can be really huge if you need some clutch defense, so it's best to keep it available for when it's really needed.