Don't forget about those grapple ledges that is real handy for pursuing on foot or just getting around the map. There are should also be some cracked walls or blocked paths with cracks that should be able to be taken down with a few melees or just one well or not too poor timed spartan charged. I have only seen them in warzone maps and the campaign though but I'm in firefight most of the time. Firefight is pretty much all I do, and I'm pretty good at it, in fact the other morning the team I was with won 3 mythic warzone fire fights, its a pretty good accomplishment if you ask me. But put me in a warzone or warzone assault and I would basically be a single grunt, without plasma grenandes, and just a plasma pistol, facing off against the entire UNSC fleet. Bottom line, I am about 100% sure that I would be screwed in any way, but you still have to do your best with your team and warzone alone holds the highest amount of players of all the game types. There is so much you have to do: take out computer enemies, while defending or capturing buildings like armories and garages, not letting all the buildings get captured so your team's fortress's shields won't go down and the core would be exposed, while fighting the other team, trying to take their bases to expose their core so you could destroy their core, and win the game, or if they destroyed your core the same way (except they did it first) you instantly loose the game, as well as take out the high priority targets to gain req levels and win the game by reaching the points goal, and this is all going on AT THE SAME TIME. Its just too much to do and too difficult. I have yet to win a warzone match. But Thats definantly where the most intense fighting is. But if your like me and like to keep things a little more simple, there is warzone firefight. Its simple, you and your team fight thorough increasing difficulty, their are different objectives. Destroy a certain species of enemies, destroy a or bosses, destroy a vehicle boss or bosses, destroy a certain type of vehicles, protect certain objects from being destroyed like cores and generators, and Defend certain Buildings. Round 3 is when lengendary bosses start to appear, doesn't matter if you selected heroic, legendary, or mythic firefight, those targets will be labled as legendary bosses, but it is labled that and its difficulty is rounded down depending on what type of firefight you are in. If your lucky, you will just see them in round 4 and 5, Round 5 is when Legendary bosses appear and once those are taken out, the mythic boss or bosses appear ( same thing applies just like legendary boss or bosses.) There is something special in firefight that you can't find anywhere else. The almighty talkitive and loudmouth grunt pilot, yes, I am refering to the grunt mech, as far as I know, there are 2 different kinds of grunt mechs, the plasma specialist, and the needle specialist, (not actual names) the plasma mechs have made their appearance not too long ago. They have a special homing attack that launches homing plasma grenades that stick to spartans and vehicles. These grenades are slow but catch up fast, if your in a vehicle you should be fine as long as its contains more than one person, and no that doesnt include mongosses and gun gooses, I mostly refering to warthog vehicles and bigger and more armored. The reason why you should be fine is that about one or two of these grenades can only inflict a emp effect and maybe some damage to the vehicle or your shields but you should be fine as long as its not close to you. The weapon the plasma mech uses seems to be very similar to that of a hunter's fuel canon that rapid fires, but way more powerful, fast, deadly and accuarate. I haven't completely seen it but I am sure that the plasma mech can launch a single plasma grenade from its free hand just like the needle specialist can. The plasma mech does have a certain self destruct mode, I am not completely sure if the pilot has control of it however. It detonates exactly like a grunt would if you get too close or scare them too much. So it pretty much kamikaze by pulling 2 plasma grenades from... huh I have no idea where it gets them from, but it does run toward a player or vehicle to take it down with it. Needle mechs focus mainly on needle weapons. It has a needler weapon that launches bigger than the average needle shard that homes in on vehicles and players, thankfully the needles are pretty slow and the fire rate is slower. The needle mech has a special attack much similar to the plasma mech but instead shoots dozens of needles that lock on and purse a target at alarmingly increased speeds that home on players and vehicles. Both of the mechs' special attacks are fired in a circular field that then pursues it targets. Thankfully the needle mech doesn't have a self destruct mode like the plasma mech. Both can heavily damage even a corp tank with just one punch, and destroys any warthog with one punch as well. Both also have a jump boost which allows it to jump to high locations to evade too much fire or to get to other players. However they are pretty fun to listen to.
The final round is about 90% chance going to be a legendary and mythic boss fight. Whenever the promeatheans get the last round, you either face off against nights or the Warden Eternal. Yes the WARDEN ETERNAL himself, with a paint job determined by legendary and mythic boss difficulty, He has a laser that can one shot a fully charged spartan even with upgraded shields and possibly overshields, however it only has a emp effect on vehicles. He is also able to somehow launch some type of miniature black hole that can destroy almost any vehicle as well as spartans, and it also homes on vehicles and spartans. When his health drops to certain amounts or levels of health, he will cry out in pain as the black hole kinda grows bigger momentarily then shrinks back to normal, at this time he is stunned or paralized in his painful cry, but when he recovers in about 10 seconds he will be back to wrecking some stuff. If his health is really low to where a focused fire of like 5 scorpions would take him out, you can hit him from the back, (still needs to be on the ground), and you can actually ASSASSINATE HIM. However the assassination animation takes like a minute to 30 seconds to execute and he would probably be destroyed by other the other players firing on him. He sometimes appears as a legendary boss in round 4 but its a very small percentage. There is a low percentage that the last mission is would be a protect mission where you have to protect objects from being destroyed.
Oh and 50 credits that the Covenant got the grunt mech idea from the Mantis.