In the start groups are somewhat troublesome as Vanguard due to little area damage. If you want my opinion then stick with Jorgan for a while for his damage to deal with packs. Besides that then what I experienced to be the best is to throw a Sticky Grenade on the middle mob if groups are packed up and then use Pulse Cannon. This means you shouldn't start out with a ranged attack, but just run into melee of the group, apply the grenade and Pulse away. Groups are usually badly damaged or dead after that. If you can keep upgrades in a good range of levels, then stick with Jorgan or M1-4X in damage mode. Elara is useless on normal groups, as her damage is pathetic and your other companions mow down units faster and cause you to lose little or no health at all. I'm at level 39 now and only used Elara on champion bosses. Anything else gets stomped instantly in melee range with me and Forex in damage mode.