Vehicle combat is sadly a mere shell of what we know they're capable of. I hate to bring up halo every time they need to change something but let's be honest: if you played halo, any great memory from that series most likely has a vehicle involved. Destiny has four vehicles: the sparrow which hardly counts as a vehicle and more of a ferry from mission tour stop to mission tour stop. The pike which exists on three pvp maps we never see, a miniature rare public event, a story mission on the moon which is easily missed, and a brief moment during a strike. The interceptor which is also featured on two maps we never see, and a brief moment during a strike, but because it's so weak no one really uses it except to ram the majors. And the Heavy Pike which makes the first mission of HoW fun, but again is short lived and you can sometimes stumble on one in patrol. Maybe. Pvp side, the lack of vehicles is endemic to Bungie's newfound fear of large maps. Bastion, First Light and Skyshock aren't the best maps in the world but Bungie is terrified of putting them in rotation outside of a rare playlist. Is it because everyone can spawn with a sniper? Your guess is as good as mine. Pvp can greatly improve by adding vehicle combat and buffing current vehicles. The Alpha interceptor was too powerful, but now it simply can't stand up to any kind of fire or you just get shot out the back way too easily to even consider running a vehicle. Multi seat vehicles, not necessarily a warthog knockoff but maybe some kind of heavy sparrow with either a small turret or simply a back seat could go a long way. Maybe a small aircraft that can't go too high but can hover around and shoot things? Making maps for these vehicles will also satisfy the lack of large maps in the current pool and the general lack of use of scout rifles. Trust me blink shotgun doesn't fly on first light but it's the only thing you'll see on cauldron. Pve also benefits from more vehicle encounters by splitting up the missions a bit. "Defend three waves while dinklebot opens a door" followed by "kill the big thing" over and over really makes the game less enjoyable when we're grinding activities for loot. The first house of wolves mission got my hopes up for more vehicle combat but we never saw it again.