Playstyle kinda varies depending on who's tagging along since I switch up constantly, but generally if someone has Overload I spam it like hell and if they have Singularity (er, if they're Liara) I spam it like hell. And if they have Dark Channel and Pull (hint, hint) I spam both because Pull is great in this game but dammit, Dark Channel just sounds like something you do not want to mess with.
Or... watch. Or something.
I'm finding myself sniping much more than in 1 and 2. The battlegrounds really cater to it. I'll snipe at least half the enemy army if it's Cerberus. If it's Reaper faction things are more varied because they like to get all up in my grill more.
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"Mr. Paris, I assume you've had a great deal of experience being rejected by women." ~SCP~
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