As well as this, you need to bear in mind that Easy = mobs one level below you, Medium = mobs at your level, Hard = Mobs one level above you.
Avoiding Westview missions and ones in Richland with mobs higher than you is tricky business - main tips would be, to avoid the mobs, try to stick to the main roads, stay in the centre of them to give you a better chance of not catching the eye of nearby NPCs - if that does happen, it gives you that extra distance to run like hell - Hypersprint/speed is your friend in these circumstances!
Also, try to avoid escort missions whenever possible and stick with ones which confine your activities and objectives to the mission building.
Scouting the server forums for factions who are recruiting can help you hook up with a strong crew who will more often than not be happy to help you, either by giving you advice or by grouping with you to complete missions.
