Turian Sentinel on Giant vs. Collectors (failed on Wave 10)
Turian Sentinel -- 5/6/6/6/3
Lancer III with Extended Magazine and Piercing Mod
Acolyte X with Ultralight Materials and High Caliber Barrel
Ammo Bonus: Incendiary Rounds IV
Weapon Bonus: Assault Rifle Rail Amp III
Armor Bonus: Adrenaline Module III
Gear Bonus: Armored Compartments V
Gold solo on Giant vs. Collectors (failed on Wave 10)
Escort, Targets, Devices
66:44
157,204 points
3 Waves Survived, [a bunch of pointless kill medals]
Used: 6 Medi-Gel, 5 Ops, 7 Missiles, 1 Thermal Clip
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Changes from my previous attempt include re-spec'ing to have only 5 ranks of Tech Armor, but all 6 ranks of Overload; and the use of Armored Compartments rather than Barrage Upgrade.
Unfortunately I failed again. Made it to Wave 10, Devices, and was able to get the first device done. The second one was in the Connection area. I successfully drew the enemies away… or I thought I did. Turns out there was a Possessed Scion in there, and he clobbered me with his clutch of grenades. I tried to use my last Ops Pack, but either I pushed the wrong direction on the D-pad or the game didn't register it.
In truth, I failed this solo attempt on Wave 6 Targets. Just as the wave was about to start, I got a phone call that I had to take. I was desperately navigating around the map, trying to locate the targets, while being distracted by the person on the phone. Multiple times I got into perfect position to missile the target, only to realize I still had my Lancer equipped. Then I compounded my error by pressing X to switch weapons rather than D-pad Up to pull out the missile launcher. Argh!
I ended up using 4 Missiles on Wave 6, because I almost ran out of time. I also used probably 3 Medi-Gel and 3 Ops Packs. Overall, an absolute disaster, but I decided to play on.
My last Medi-Gel got used up on Wave 8. And I went down to one Missile by nuking some of the nasty spawn on Waves 8 and 9. (I was able to kill two Praetorians and two Scions with one Missile, which seemed like a good deal.) Thus I wasn't in good shape for Wave 10, but it would've been at least theoretically possible for me to complete this solo if I had seen the Possessed Scion near the device.
Several people recommended that I use Geth Scanner, which would've let me see that Scion. However, without Armored Compartments I might not have made to Wave 10 at all. However again, without the distracting phone call I wouldn't have needed to use 4 Missiles on Wave 6 Targets.
Overall this was a discouraging solo attempt because I played so sloppily.