Okay, so, my apologies for taking so long but i wanted to finish every other part of the game before doing the last mission for act 3 and beginning the Shadow Wars section.
Totally was not expecting that twist. Not gonna spoil though.
As for the Shadow Wars, the enemy orcs are all your level or lower (some way lower, i ended up being 43, lead enemy orc is 42 and the lowest enemy orc is 32) so i see no reason to use MT whatsoever to attain completion.
However, they do want you to get the $1 xp boosts in order to reach cap level, which is bullshit but there is a way around it. Doing Online activities (which I’m on PS4 without PS Plus and they still allow me to do online activities) gives you a currency called “Spoils of War” and you can use those as well as Spoils chests (which are automatically gained depending on performance in online activities) to get free XP boosts.
I recommend doing as many Online activities as humanly possible in order to gain free XP boosts, then when you sit down and decide to quest just run an XP boost the entire time and you should end up at max level (i did a lot of digging to find out how to max level)
If you don’t do all that, your only choic is to do a ton of nemesis and vendetta missions in order to gain exp from them. You’ll end up doing a SHIT TON as well, i routinely get maybe 2 thousand xp per and from 43 to 44 (where I’m at now) it takes about 57,000 experience to level once. Also it takes 100,000 exp per level from 51 to 60.
As for doing the final mission Questline, MT isn’t needed. You can easily get your own captains and level them to your level through game methods, or you can intentionally die to captains and they’ll become around your level and you can dominate them afterwards. All in all, i don’t feel pressured to do MT for cash at all.
I do wholeheartedly recommend saving your Mirian for the final section, because you have to defend 4 fortresses and the best wall upgrade (metal walls) costs 7500 Mirian a pop. As long as you save enough for those plus any extra for fortress defense upgrades, you’ll be golden.
Also side recommendation, do the fight pits where possible, finishing the final fight pit for each area grants an extra captain plus an extra fort upgrade for each area.