GSBD: Day of Wrath ( GINN {Miguel}, No Respawn, S Rank)
The final mission of the Z.A.F.T '71' story path and likely the hardest mission to S Rank in the game at least if your trying to do it the first time through due to a soft ally enforced time limit on a certain part, the method below is one way to do it if you are struggling though it is frustrating and should be used as a last resort.
To prepare give your ally a suit with a long ranged beam super as it will come in handy at several points in the mission while you are going to want Hyper Mode to prevent damage as you are going to need to protect your partner on this one.
At the start of the mission set you ally to defence you want to keep them under control through the entire mission so remember to set them back to defence after every time you have them use the SP command.
When you see the six Strike Daggers move around the side of them as not to draw aggro you will want them to destroy the Buster for you to get it out of the way as it will attack you while they do that just pick away at them and clean them up once the Buster is gone.
the next wave is a 105 (Sword) and Two Strike Daggers keep your ally out of harms way and take them down, when the Moebius spwan in ignore them and place yourself about halfway between the two supply boxes away from each other so you can deal with the next enemy wave of two Strike Daggers and 105 (Sword) with Hyper mode, afterwards run back to the pair of supply boxes by the red line and resupply before waiting for the Duel to clear the next enemy wave for you you want to use the Moebius to bring him as far forward as you can so don't destroy them unless you have to and instead position yourself to the back right of the map ( use the red line to orientate yourself.) and wait for the Bio Cpu Trio to spawn in.
If you have lured the Duel far enough away from the ship he should start fighting with one of the Trio, if that happens you can find the Raider positioning your ally so that they don't hi the ship before ordering the super, even if it misses it should pull him towards you letting you focus on him, when the Moebius spawn in don't worry about them stright away as you should have enough time to deal with the Raider before disengaging to deal with them, don't be afraid to use the SP Boost to get away from the enemy and quickly clean up the Moebius afterwards if you have the meter Hyper mode to clean up Calamity quickly or be patient and let your meter build up, if you have a good run don't waste it, once the Forbidden is by itself wear it down carefully and then let the Duel finish the ship while you wait for your meter to return.
The second part of the mission opens with five Astray though they are split apart making it easy to take them all out, the next group will be in two sets of two so just do the same again being mindful of where your partner is as you don't want them to go down if you can help it, next the Strike (Aile) will spawn in with two more Astray and an allied Providence have your partner use a super on the Strike while you clean up the Astray then take out the Strike to make the Strike Rouge and four Astray spawn in, again take out the Astrays quickly before taking out the Rouge while trying to keep enough meter for Hyper mode.
The next part has the Freedom METEOR and six Astrays spawning in, once again you want to start by clearing out the Astrays using Hyper mode to stay safe from the Freedom until the 'New Enemy Unit' massage appears, the new enemy is a ship that does down in a single shot but will leave the battlefield quickly so use the mini-map to find it before obliterating it with whatever weapon you want to before turning your attention back to the Freedom.
due to it's speed just hitting the thing can be frustrating though your lest options are weapons with good tracking such as missiles as the METEOR doesn't have phase shift armour, if that isn't working using your partners super or even just hoping the Providence uses it's super while you attempt to draw attention away from them can work, once it loses half it's health it will turn into the standard Freedom, the mission is very nearly over so fight carefully using Hyper mode to counter his Super attack and you should be able to make it over the finish line.