Lurkers hiding on structures and minor xeno interactions tweaks #405

Job	Run time
Lint with OpenDream	28s
Compile Maps	1m 20s
Run Linters	1m 11s
Find Maps to Test	12s
Windows Build	1m 19s
Unit Tests (almayer) / run_unit_tests	6m 8s
Unit Tests (chinook) / run_unit_tests	5m 54s
Unit Tests (bigredv2) / run_unit_tests	7m 1s
Unit Tests (derelict_almayer) / run_unit_tests	6m 6s
Unit Tests (corsat) / run_unit_tests	6m 12s
Unit Tests (golden_arrow) / run_unit_tests	5m 45s
Unit Tests (desert_dam) / run_unit_tests	6m 40s
Unit Tests (fiorina_sciannex) / run_unit_tests	6m 49s
Unit Tests (ice_colony_v2) / run_unit_tests	6m 3s
Unit Tests (kutjevo) / run_unit_tests	5m 57s
Unit Tests (lv522_chances_claim) / run_unit_tests	6m 44s
Unit Tests (lv624) / run_unit_tests	6m 11s
Unit Tests (new_varadero) / run_unit_tests	5m 54s
Unit Tests (prison_station_fop) / run_unit_tests	5m 53s
Unit Tests (runtime) / run_unit_tests	5m 54s
Unit Tests (shivas_snowball) / run_unit_tests	6m 5s
Unit Tests (sorokyne_strata) / run_unit_tests	6m 1s
Unit Tests (whiskey_outpost_v2) / run_unit_tests	6m 3s
Alternate Tests (515, 1610, lv624) / run_unit_tests	5m 46s
Check Alternate Tests	1s
	2h 1m 37s

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