Most of these don’t really add anything to the sandbox. Bubble shield and Deployable Cover are too similar to Drop Wall (I agree the drop wall could/should be improved but the way to do this isn’t to add a better variant of it). Jet Pack and Grav Lift are too similar to Grappleshot. There’s already a grenade that works like the Power Drain. I forget what they are called but the shootable scanners are better versions of Promethean Vision.
Currently the equipment system is the best iteration we have had in a Halo game IMO. I hope they add more equipment in the future but they have to play some unique role and not just be variants of equipment we already have (e.g. Hologram).