Those goddamn Forerunners sure had a thing for gorges... CE style big team battle map, in early stages.
Are those lights invisible? I suggest using real ones. Do you want to mimic forerunner lights from H1, H2, or H3? You can use the lighting style from your favorite campaign level or multiplayer map. You may want to consider active camo too.
Yeah I'm not a huge fan of ability pickups but that's a good suggestion for gameplay. I'll definitely look into the lighting, Thanks!