The best approach for these tunnels starts with keeping a good supply of bolts, since you'll need to toss them ahead constantly to spot danger zones. What works really well is watching the electrical discharge patterns, they usually pulse every 3-5 seconds which gives you decent windows to move through. Make your way along the dry concrete edges because, trust me, those flooded sections will absolutely wreck you if you step in them while an anomaly is active.

When you're pushing forward, use any pipe scaffolding or broken walls as cover points between the electrical bursts. Something really useful to remember is that throwing a bolt directly into an anomaly creates about 8 seconds where it won't trigger, giving you time to sprint through safely. If you're feeling stuck, try marking your path backward by tossing bolts while retreating, helps map out the safe spots.

Good to know - that freedom faction armor with its 90% electrical resistance is amazing here if you've got it, and having some rupture resistance artifacts equipped helps survive those close calls. Always worth saving before trying new paths since those emission storms can shuffle the anomaly positions around. Whatever you do though, don't just trust your eyes - switch to scanner mode regularly because some of these fields are practically invisible otherwise.