If you like to run missions solo learn the spawn moments and in this particular GE focus on the weakest enemies first. When they die and explode they help you kill the other stronger ones. Also running D3 is not needed because with a lot of firepower you actually kill NPCs before they start doing serious damage, but that is just my personal play style. There are few missions that do require use of D3 (or preferred) like Stolen Signal and in all legendary missions it is handy when there is one for distraction and catching bullets while team mates all do most of the killing.
It's over now, but if you have a good Tactician build, set it with the two explosive modifiers active, plus bleed. With 4 seeker mods, and either sticky or turret, you can make quick work of many missions during Strike.
Also, I have long found that after doing the GE commendations requiring the extra modifiers, that often the small extra credit bonus they offer, is offset by slower runs.