Infiltration | Research Lab | No Failure Run
This one's a pretty tough map. You're meant to destroy a gateway at the very end of this map, but the only hint you get in regards of how is the use of a GES rifle. In Unreal, it's a simple enough job to do, but for Infiltration, there's not a lot of equivalent weapons that could be reliably used. I did try the single shot GL with a fair bit of ammo, but I just couldn't get the arming range to play in my favor.
However, one thing did work. An AT4, directly fired at the portal. It's a long haul to carry it, and even after that you still need to carry extra ammo as this map has a fair chunk of enemies to go through, but the map is possible to beat. Took me a few tries to do, as I keep underestimating just how much ammo I need to carry, but once I got the AKMSU with 4 drum mags, the run went by a lot smoother.
Mods Used:
Infiltration CE: https://www.moddb.com/mods/infiltration
INFCOOP: https://www.moddb.com/mods/infiltration/downloads/infcoop-main-files
Psytex: https://www.moddb.com/mods/infiltration/addons/psytex-12
Research Lab: https://www.oldunreal.com/maps/unreal/single/researchlab.zip