The final mission of chapter 5 is “Bitter Obligation.” It is the mission 35th of the game.
Unseen Assailant: Use the BurnOgoto mech.
When the mission starts, proceed through tunnel till reach end than fall down to next tunnel a bit to the left. Proceed into next tunnel and shoot enemy at other end with the ER-0200 rifles and than go to next tunnel entrance to the right a bit. Once in next room, fly up a little and look left and destroy next target and go back down and into next tunnel. Once in next room, fly up till get to the next two targets than continue flying up till next tunnel. Once in next room, go to tunnel entrance that's just a bit left. Once in final room, destroy last target to finish the mission.. On Hard, it is the same as on Normal difficulty.
Hail of Bullets: Use the BurnOgoto mech.
When the mission starts, switch to the OGOTO's and than boost forward to first set of enemies on the landing strip in middle of water. Once destroyed, turn to the right and go to the next set of enemies on the second landing strip. Destroy them to finish the mission. On Hard, Do the same as on Normal difficulty, but after you destroy the second group, there will be 2 submarines and 2 ships out in the water that you need to destroy. Just use the OGOTO's to finsh them up.
Silent Avalanche: Use the BurnOgoto mech.
When the mission starts, switch to the OGOTO's and than boost to the left to destroythe first set of sniper Normals. Than continue to the next group(can follow there shots to get to them) and so on until all 3 groups are destroyed. On Hard, do the same as on Normal difficulty, but after you destroy the last group of enemies, 2 enemy NEXT's will show upto ruin the party. Just show them whose the boss with the OGOTO's and ER-0200's to finish up the mission.
Futile Resistance: Use the BurnOgoto mech.
When the mission starts, switch to the OGOTO's and proceed to destroy all enemy Normals in area until you reach the bottom where 4 more Normals will be. Destroy them to finish. Just be careful on this mission because the further down you go, the more damage you take from the chemicals in the atmosphere. So be quick about destroying the enemies. On Hard, it is the same as on Normal difficulty, but with a couple more enemies to destroy.
Pillar of Light: Use the BurnOgoto mech.
When the mission starts, switch to the OGOTO's and than boost like crazy while dodging incoming lasers and missiles and get under the structure to the right where enemies are firing from and blow the dome thats under it to lower's targets shield. Once done with dome and reach the target(big tall structure in middle of area). Destroy the cannons around the center structure. Once cannons are destroyed, use the Ogoto's to blow up the target. On Hard, it will be more difficult to reach the target because of more laser and missiles coming at you, but boost like crazy and do as you did on Normal difficulty to finish the mission.
Sol Dios: Use the BurnOgoto mech.
When the mission starts, switch to the OGOTO's and than boost forward until you get to the sol dios enemies. Once at the first group of them, fly around at a distance in front of the round part that shoots lasers. Once it starts to charge, blast it with the OGOTO's(use manual aiming by clicking and holding in the left thumbstick for a bit if needed). It should only take about 4 shots to destroy one. Once destroyed, move away quickly because their explosion is pretty big. On Hard, It's the same as on Normal difficulty, but you'll have to destroy one more group because WhiteGlint doesn't do his job.
Jardin De Chavalier: Use the BurnMoon mech.
When the mission starts, go forward to the door in front of you and start slashing at it right away. Doing this should kill the enemy NEXT before you even see it. If it don't happen, than switch to the OGOTO's and start blasting the NEXT. On Hard, it's the same as on Normal difficulty.
Marche Au Supplice: Use the BurnSirius or BurnOgoto mech.
When the mission starts, switch to either the Sirius or OGOTO's(whichever you choose) and than boost to the first enemy NEXTS and start firing away with your back weapons. Be sure to be quick and efficient with each NEXT. On hard, there will be no help with the NEXT's, but here's the way I did it. Not sure it it works all the time but is you stay neat the edge of the combat area where it says "Limit of Area" on the screen, stay there flying around because the NEXT's just flew around, away from me. Than came up one at a time as i got closer to them. Than use the OGOTO's or Sirius cannons along with the ER-0200 rifles to destroy the NEXT's one at a time. If that don't work for you, than just try to boost and dodge like crazt while blasting the NEXT's.
Bitter Obligations: Use the BurnOgoto mech.
When the mission starts, switch to the Ogoto cannons and proceed to blow up the metal pillars holding up the building. Once all the pillars are destroyed, get away from the building because it comes crashing down. On Hard, it will be difficult to shoot the pillars with the enemy NEXT shooting at you, so use the Ogoto cannons to destroy the NEXT first. Than proceed with the pillars, but be careful of the boats that also shoot at you.