Ran the Lilipa TA map right before maintenance today with Wunder and DJ. It wasn't so bad once we understood the basic route. We ran it in Normal under 14 mins (S Rank is 20) with just us 3 and got halfway through Hard before maintenance kicked us off. With 4 people and the shortcut that we missed in A2 we should be able to clear it in V Hard.
The quest is pretty much stop and go. You'll basically get to a room, red barriers pop up along with some enemies, and when all the enemies die the red barrier dies. A1 in particular is filled with invisible traps that once you cross a red barrier locks you in with a group of enemies so do not cross the maroon zones I marked.
The team should be split up into 2 groups for A1. Group A should be the 2 people with the highest AOE damage, while Group B should be the lower DPS group. Out of the 2 people in Group B one person should be able to do tech damage, specifically Sazan, for the detours/damage switches.
At the start of A1 you'll get locked in E5. Once the enemies die Group A & the non tech person in Group B head to E4 while the tech person in Group B uses Sazan to hit the damage switch F5. Two charged Sazans should do the trick, but do not go into the room or you'll get locked in with a Gilnas (switch opens a gate in E4 I believe, not 100%).
When Group A reach E4 they should focus on blowing up the dome to stop enemies from spawning (keep in mind Rafoie will do damage to the dome and the enemies inside) and then they should focus on killing the enemies. At the same time Group B should focus on the yellow tap switch in front of the dome (detour guy should help with the switch when he reaches it). Once the switch is closed everyone clears the enemies ASAP to unlock the button switch. Hit the button switch to unlock the blue gate and move on to D4 for the next set of enemies and then C4 for the next dome. Same strategy as last time, Group A on Dome/Enemies while Group B gets the switch first. Hit the button switch, move on to C5, kill enemies, move on to B5.
B5 will have a yellow tap switch and some enemies near it, but no dome. Same thing as before Group A enemies, Group B switch. When that's cleared head to B3 killing everything on the way while Detour guy goes down the ramp in B4 to hit the invisible damage switch (switch unlocks the gate that protects the explosion barrels in D2). Once you reach the corner in B3 a Gilnas should spawn kill it before moving on.
When you reach the fork in C4 Group A should head N to destroy the dome while both persons in Group B head S for the other dome. Once the enemies are killed tap the yellow tap switch and move on to C2. Same as before, Group A Dome while Group B taps. Move on to D2, everyone kills the enemies, try to blow up the barrels for the splash damage on the enemies before you go down.
After killing the enemies in the center of F3 the group should split into 2. Enemies will spawn SW and NE of the center so have one group go NE and one stick to the SW. After a couple of enemy waves 2 Gilnas will spawn, one N of the center and one S. When they die, the gate blocking A2 will unlock.
A2 is similar to A1 in that some rooms have red barriers pop up and you have to kill enemies, but it has the added hazard of spinning laser alarms. Trigger one of the alarms and red barriers you could have skipped will pop up with enemies. As you progress through the map you have to hit switches to unlock the gates that block A3. The way we did it is we split into 2 group, Wunder and DJ went N for the blue/yellow switch while I went E for the green switch, but it seems like there's a shortcut detailed on one of the JP wikis so I'll just post that route instead.
Group A is one person, while Group B is the other 3 people. Group A will head north towards the blue switch in C3 killing everything along the way to unlock the red barriers. Once he reaches the switch he has to remain on it for the shortcut to work (
Not 100% sure on the Group A route, I always went E so I don't know if you have to clear D4 & D3 before reaching E3.).
Group B on the other hand heads east towards the green switch in E2/switches in E3, killing everything along the way. When Group B reaches E4 they have to split up into two groups. The left side will have to defeat a Signo Beat and two Signo Gunners while the right side will face 3 Sparzyles. Once they clear the rooms they can regroup and clear E3 together. Once that's done one person heads to the green switch in E4 (once again, remain on the switch) and the other 2 stay in E3 so they can stand on the red switches at the same time (
Not 100% sure on this). When you press both switches at the same time a jumping pad will appear in F3 letting everyone sidestep the gate blocking A3.