Running this mission with average gears can be hard, but it's easier if you have a mass DEF debuffer like Cannon Main here. Debuff, kill, move forward, repeat your way to victory.
This is one of the easier and faster Dogon missions. Was a lot easier before the Three Gateways patch but still very doable with average gear (+4 evil weapons type average). No bosses to kill. Kill all mobs as you move north and destroy 4 buildings (prisons) to complete the mission.
Stalling NPCs with a stunner like Sheriff, Druid or Ody would give you extra turns to kill mobs here. Add a Hwarang to turn your Cata into a decent damage dealer, which is also very useful for wiping the final ambush in 1 turn.
Cannon mains shine in this TBS although other mains can do it too with either a Sheriff or Cannoneer plus either Hwarang or Healer for those with lower + support weapons like I have here since you'd definitely need more 1 hitting power in this mission.
Ranged mercs work well in this mission, particularly with Hwarang's Aura since you'd want to destroy a Summon Gate fast at one point.
There's also a crapload of traps to deal with although you only need to remember the 5 Net Traps at least.
This mission could be hard if you follow the preset mission sequence, but by clearing mobs in advance before accomplishing objectives it doesn't have to be.
Sounds like a lot of hassle but this mission is pretty easy if you know what to do. It also gives up to 50m+ EXP per merc which is pretty high for a level 132 TBS, and 14 reward boxes is more than the usual.
Learning to solo Last Stand can be a very exciting adrenaline rush experience at first. With the mad dashes to destroy and kill stuff at two locations simultaneously within a limited time to be prepared for the next timed events.
This mission is time-based which forces you to spend at least 23 minutes on it, but 15 reward boxes in the end kinda makes up for it, specially if you can solo.
Spear Main + Sheriff + Hwarang.
Attila is probably the best merc to have for all Zulu TBSs, but my alt has none so I had to use my usual TBS mercs before Zulu was added, Hwarang and Sheriff. Their ranged attacks work well for clearing spider webs in this mission at least.