- JediPimp
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- Honorable Member
In Halo Wars, the sentinels' weapons appeared to be different than the normal sentinel beam. It seemed like some kind of plasma carbine.
There was also the blue sentinel beam from Halo 2, which was more powerful but overheated faster, like the brute plasma rifle.
As for completely new things, I have a couple of ideas:
an EMP rifle that can slow down vehicles with each shot in addition to dealing damage
a gravity cannon that functions as a weaker rocket launcher but can propel objects and players/enemies with great force