When I tested White Tigermen, I didn't find them overpowered, although when playing Fortress Defense in general, you have to be willing to make use of a great deal of strategy and possibilities if you can't get enough high quality arms/armor/soldiers in time. I have no shame admitting that I am willing to use waves of green troops armed with crossbows and bone bolts to augment my early defenses.
Very well, I present you a challenge:
+ Use Intensifying Mod. See my sig for download links.
+ Survive the provided embark without reclaiming until year 3 or kill 10 tigermen using dwaves, whichever come later.
+ Enemies must have a path to your dwarves
+ No walk of doom. Maybe 2-3 tiles on your (non-raised) bridge but that's it.
+ Minimum traps. Each path has a handful at most. Weapon traps can only have one weapon. Trap kills, including cage's, do not count.
+ No weird exploits except extremely elaborate and stupid dwarven tricks. Use yonr common sense to judge.
+ You can only use up to 1274 embark points as in default embarks even though the world gen allow 10000. I typically use 1223 points cause it read 8777 remaining, btw.
This 2x2 embark is flat, has flux+iron and easy to access magma. Siegers typically arrive AFTER the caravan so you can trade. The first siege will usually be 1 tigerman squad. The second one, 2 tigerman squads and 1 of stranglers and frogmen. The first one usually arrive at the end of the second spring. This mean if you play well you should be able to defeat it in one sitting.
[WORLD_GEN]
[TITLE:TEST_MAP]
[SEED:3129651532]
[HISTORY_SEED:158289604]
[NAME_SEED:2351902760]
[CREATURE_SEED:2827103152]
[DIM:65:65]
[EMBARK_POINTS:10000]
[END_YEAR:100]
[BEAST_END_YEAR:200:-1]
[REVEAL_ALL_HISTORY:1]
[CULL_HISTORICAL_FIGURES:1]
[ELEVATION:100:400:1600:1600]
[RAINFALL:33:100:800:800]
[TEMPERATURE:25:25:0:0]
[DRAINAGE:33:49:800:800]
[VOLCANISM:66:100:400:400]
[SAVAGERY:33:100:400:400]
[ELEVATION_FREQUENCY:1:16:8:4:2:1]
[RAIN_FREQUENCY:1:0:0:1:1:1]
[DRAINAGE_FREQUENCY:1:0:0:1:1:1]
[TEMPERATURE_FREQUENCY:1:1:1:1:1:1]
[SAVAGERY_FREQUENCY:1:1:1:1:1:1]
[VOLCANISM_FREQUENCY:1:1:1:1:1:1]
[MINERAL_SCARCITY:100]
[MEGABEAST_CAP:400]
[SEMIMEGABEAST_CAP:400]
[TITAN_NUMBER:100]
[TITAN_ATTACK_TRIGGER:80:0:1000000]
[DEMON_NUMBER:100]
[NIGHT_CREATURE_NUMBER:0]
[GOOD_SQ_COUNTS:64:256:1024]
[EVIL_SQ_COUNTS:0:0:0]
[PEAK_NUMBER_MIN:0]
[PARTIAL_OCEAN_EDGE_MIN:0]
[COMPLETE_OCEAN_EDGE_MIN:0]
[VOLCANO_MIN:0]
[REGION_COUNTS:SWAMP:0:0:0]
[REGION_COUNTS:DESERT:0:0:0]
[REGION_COUNTS:FOREST:1024:0:0]
[REGION_COUNTS:MOUNTAINS:0:0:0]
[REGION_COUNTS:OCEAN:0:0:0]
[REGION_COUNTS:GLACIER:0:0:0]
[REGION_COUNTS:TUNDRA:0:0:0]
[REGION_COUNTS:GRASSLAND:0:0:0]
[REGION_COUNTS:HILLS:0:0:0]
[EROSION_CYCLE_COUNT:1000]
[RIVER_MINS:0:0]
[PERIODICALLY_ERODE_EXTREMES:1]
[OROGRAPHIC_PRECIPITATION:1]
[SUBREGION_MAX:5000]
[CAVERN_LAYER_COUNT:1]
[CAVERN_LAYER_OPENNESS_MIN:100]
[CAVERN_LAYER_OPENNESS_MAX:100]
[CAVERN_LAYER_PASSAGE_DENSITY_MIN:0]
[CAVERN_LAYER_PASSAGE_DENSITY_MAX:0]
[CAVERN_LAYER_WATER_MIN:33]
[CAVERN_LAYER_WATER_MAX:33]
[HAVE_BOTTOM_LAYER_1:1]
[HAVE_BOTTOM_LAYER_2:1]
[LEVELS_ABOVE_GROUND:5]
[LEVELS_ABOVE_LAYER_1:5]
[LEVELS_ABOVE_LAYER_2:1]
[LEVELS_ABOVE_LAYER_3:1]
[LEVELS_ABOVE_LAYER_4:1]
[LEVELS_ABOVE_LAYER_5:2]
[LEVELS_AT_BOTTOM:1]
[CAVE_MIN_SIZE:5]
[CAVE_MAX_SIZE:25]
[MOUNTAIN_CAVE_MIN:0]
[NON_MOUNTAIN_CAVE_MIN:200]
[ALL_CAVES_VISIBLE:1]
[SHOW_EMBARK_TUNNEL:2]
[TOTAL_CIV_NUMBER:100]
[TOTAL_CIV_POPULATION:-1]
[SITE_CAP:-1]
[PLAYABLE_CIVILIZATION_REQUIRED:1]
[ELEVATION_RANGES:0:1024:0]
[RAIN_RANGES:0:0:0]
[DRAINAGE_RANGES:0:512:0]
[SAVAGERY_RANGES:0:0:1024]
[VOLCANISM_RANGES:0:0:0]