1) Spike Grenades are every bit as effective as Lightning Grenades, you just need to learn how to use them.
2) yes, Titans can get double Lightning Grenades, but Hunters can have double smoke grenades
3) Shoulder Charge... Smoke... Shoulder Charge... Smoke... They have theirs, (we) have ours
4) I say (we) because I've really been enjoying playing a Hunter again, but it's really pretty embarrassing to be associated with so much crying when every class (except maybe the poor nerfed Sunsingers) have advantages that make them great.
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Also smoke is kinda a bad comparison to shoulder charge. One doesn't have a cooldown and rarely kills on its own