It's not intrusive at all if you ask me. Just because you can't earn excatly what you want or get excatly what you want when you want it doesn't make it intrusive. Gamers today have very little patience. If you just play H5 and earn your RPs you will eventually have everything except the HCS stuff, classic helmets and voices of war. Those are the only buy only stuff in H5. Also req weapons are only really used in warzone and customs. Arena is still based on equal starts. Just because it does require a lot of play time to unlock everything doesn't make it intrusive.The Halo 5 req system is one of the better ways of implementing Microtransactions in games, IMO.
It is possible to get everything purely through gameplay, while also giving the option of buying packs for people who are happy to pay to get everything.
What I consider to be an intrusive MTs system is one that interferes with actual gameplay and your progression in a game.
I've said this before and I'll say it again. I hate the REQ system because
of how intrusive it is to WZ. It directly interferes with my actual gameplay. I start off playing with whatever loadout. I receive REQ points according to my performance, which gets me access to higher tiers of REQs. In order to use those REQs, I have to scamper off to a REQ station and -Yoink- around in a menu to choose something that could've... should've... been available on the map to begin with, but it can't be because of the REQs. I guess I could just let myself be killed to access that menu, but that's a bit counter productive. And the worst part is, the better I perform, the more often I'm given the opportunity to interrupt my actual gameplay [and enjoyment] to poke around in a menu. I find that to be the very definition of interfering with gameplay, regardless of its effect on progression.
Maybe some people don't look at it that way, but that's how I see it because that's how it works. It is one of the biggest reasons I quit playing H5. I've already heard the usual excuses for it, but to me that's all they are, excuses.
"It's only used in WZ..." - I really only liked WZ and I don't care if it isn't used in other game types that I rarely played.
"It has to be there because MTs" - It could've been there, but deployed differently. Other games have done it.
There's the "It could be worse" comments and comparisons to other games that have already been mentioned... and my response will fall along the lines of another one I've seen... could be worse doesn't make it OK.
I actually have less of a problem with how GOW4 deployed their MT system, despite how many times it gets pointed out for being so "evil" on this forum. I fail to see how it's so much worse than H5's. Granted, I rarely touch vs MP, but it seems to me that the bulk of their MTs are aimed at Horde mode anyway. Since I play Horde almost exclusively, I can't see how their system gives any advantage to those who buy booster packs vs those who don't. Is it because someone else could buy their way to a maxed out character before me? It's a co op game mode, why would I care? Is it because someone could buy their way to all kinds of eye candy? Even in vs, if it's just cosmetic... again... why would I care? I suppose one could make the point that you're "forced" to buy certain packs to unlock specific character/weapon skins and point to game progress, but I'll gladly forgo a few pieces of eye candy in order to have gameplay that's actually fun and doesn't shove its MT based upgrades in my face while I'm playing.
I can play Horde all day long if I want and the only time I have to deal with bouncing around in skill/ability upgrade menus is before I start, or after I'm done playing. Which is how MT systems should be deployed, as opposed to being thrown at me in the middle of gameplay. In fact, I still do play it.