I don't know which forum this should be exactly, as it isn't a proper army list. This is a full list of levels of a Necron Phalanx.
Necron Phalanx. Silver Level.
40 Scarabs, in 4 blocks of 10. Disruption fields. (640 points)
8 Tomb Spyders. Follow Warrior squads. (440 points)
160 Warriors in 8 blocks of 20. (2880 points)
4 Bronze level lords, 2 Warrior squadrons each. Resurrection Orb, Phylactery, Warscythe, Chronometron. (700 points)
15 Destroyers in 3 squads of 5. (750 points)
18 Wraiths in 6 squads of 3, acting as two seperate cohesive units of 9. (738 points)
2 Silver level lords, 3 Wraith squads each. Destroyer body, Resurrection Orb, Phylactery, Warscythe, Chronometron. (410 points)
30 Immortals in 3 squads of 10. (840 points)
3 Silver level lords, 1 Immortal squad each. Veil of Darkness, Resurrection Orb, Chronometron. (570 points)
8 Monoliths, shielding 20 warriors each. Lords go between. (1880 points)
9 Heavy Destroyers, in 3 squads of 3. (585 points)
30 Flayed Ones in 3 squads of 10. Disruption Fields. (630 points)
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This is basically the first step of escalation.
Necron Phalanx. Gold Level.
40 Scarabs, in 4 blocks of 10. Disruption fields. (640 points)
8 Tomb Spyders. Follow Warrior squads. (440 points)
160 Warriors in 8 blocks of 20. (2880 points)
4 Bronze level lords, 2 Warrior squadrons each. Resurrection Orb, Phylactery, Warscythe, Chronometron. (700 points)
15 Destroyers in 3 squads of 5. (750 points)
18 Wraiths in 6 squads of 3, acting as two seperate cohesive units of 9. (738 points)
2 Bronze level lords, 3 Wraith squads each. Destroyer body, Resurrection Orb, Phylactery, Warscythe, Chronometron. (410 points)
30 Immortals in 3 squads of 10. (840 points)
3 Silver level lords, 1 Immortal squad each. Veil of Darkness, Resurrection Orb, Chronometron. (570 points)
8 Monoliths, shielding 20 warriors each. Lords go between. (1880 points)
9 Heavy Destroyers, in 3 squads of 3. (585 points)
30 Flayed Ones in 3 squads of 10. Disruption Fields. (630 points)
10 Pariahs. (360 points)
1 Gold level lord. Nightmare Shroud, Warscythe, Chronometron, Lightning Field, Gaze of Flame, Solar Pulse. (210 points)
Undying Legion. Gauss Pylon. (620 points, added to Warrior squad)
2 Monolith Phalanxes, adding 2 monoliths to create 2 5 monolith phalanxes. (970 points plus 8 monoliths)
Doomsday Phalanx. 3 Monoliths. (855 points)
Resurrection War Cell. (200 points, added to 30 Immortals and 1 Silver Lord on foot)
2 Storm Caller War Cells. (400 points, added to 18 Wraiths and 2 Silver lords on Destroyer bodies)
Necron Tomb Stalker. (195 points)
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This is when it advances to the majority of most levels.
Necron Phalanx. Full Single Gold Level.
160 Scarabs, in 4 blocks of 10. Disruption fields. (2560 points)
32 Tomb Spyders. Follow Warrior squads. (1760 points)
640 Warriors in 8 blocks of 20. (11520 points)
16 Bronze level lords, 2 Warrior squadrons each. Resurrection Orb, Phylactery, Warscythe, Chronometron. (2800 points)
60 Destroyers in 3 squads of 5. (3000 points)
72 Wraiths in 6 squads of 3, acting as two seperate cohesive units of 9. (2952 points)
8 Bronze level lords, 3 Wraith squads each. Destroyer body, Resurrection Orb, Phylactery, Warscythe, Chronometron. (1640 points)
120 Immortals in 3 squads of 10. (3360 points)
12 Silver level lords, 1 Immortal squad each. Veil of Darkness, Resurrection Orb, Chronometron. (2280 points)
32 Monoliths, shielding 20 warriors each. Lords go between. (7520 points)
36 Heavy Destroyers, in 3 squads of 3. (2340 points)
120 Flayed Ones in 3 squads of 10. Disruption Fields. (2520 points)
10 Pariahs. (360 points)
1 Gold level lord. Nightmare Shroud, Warscythe, Chronometron, Lightning Field, Gaze of Flame, Solar Pulse. (210 points)
Undying Legion. Gauss Pylon. (620 points, added to Warrior squad)
8 Monolith Phalanxes, adding 8 monoliths to create 8 5 monolith phalanxes. (3880 points plus 8 monoliths)
3 Doomsday Phalanxes. 15 Monoliths in 3 phalanxes of 5. (5300 points)
4 Resurrection War Cell. (800 points, added to 120 Immortals and 4 Silver Lord on foot)
8 Storm Caller War Cells. (1600 points, added to 72 Wraiths and 8 Silver lords on Destroyer bodies)
3 Necron Tomb Stalkers. (585 points)
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A step further, with a full Phalanx lead by a single Gold level lord.
Necron Phalanx. Maximum Gold Level.
480 Scarabs, in 4 blocks of 10. Disruption fields. (7680 points)
96 Tomb Spyders. Follow Warrior squads. (5280 points)
1920 Warriors in 96 blocks of 20. (34560 points)
48 Bronze level lords, 2 Warrior squadrons each. Resurrection Orb, Phylactery, Warscythe, Chronometron. (8400 points)
180 Destroyers in 3 squads of 5. (9000 points)
216 Wraiths in 72 squads of 3, acting as two seperate cohesive units of 9. (8856 points)
96 Bronze level lords, 3 Wraith squads each. Destroyer body, Resurrection Orb, Phylactery, Warscythe, Chronometron. (19680 points)
1440 Immortals in 144 squads of 10. (40320 points)
144 Silver level lords, 1 Immortal squad each. Veil of Darkness, Resurrection Orb, Chronometron. (27360 points)
384 Monoliths, shielding 20 warriors each. Lords go between. (42240 points)
432 Heavy Destroyers, in 144 squads of 3. (28080 points)
1440 Flayed Ones in 1440 squads of 10. Disruption Fields. (30240 points)
30 Pariahs. (1080 points)
3 Gold level lord. Nightmare Shroud, Warscythe, Chronometron, Lightning Field, Gaze of Flame, Solar Pulse. (630 points)
12 Undying Legion. Gauss Pylon. (7440 points, added to 160 Warriors)
128 Monolith Phalanxes, adding 128 monoliths to create 128 5 monolith phalanxes. (46560 points plus 384 monoliths)
36 Doomsday Phalanxes. 180 Monoliths in 36 phalanxes of 5. (5300 points)
48 Resurrection War Cell. (9600 points, added to 30 Immortals and 1 Silver Lord on foot each)
96 Storm Caller War Cells. (19200 points, added to 18 Wraiths and 1 Silver lord on Destroyer body each)
36 Necron Tomb Stalkers. (7020 points)
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And here is the epitome. The top. Full phalanx for all 3 Gold lords. This list obviously does not include the Battlefleet Gothic Fleet that would accompany this army. And i'm not up to
Platinum yet. But its not specified in any of the apocalypse books what it has. Their are no more things to add, except for previously stated Fleet. One other thing that could be added is a single C'tan, which would be more useful if they were as powerful as the fluff provides.
If anyone else either disagrees with me or has something to add, please comment. Moderator's feel free to move this to the right forum is the wrong place, and edit out points if i wasn't allowed to use them.
Oh, and please no trolling. I know that is a pretty useless request but there no need to rant and rave. If you believe something is wrong, tell me, and if i think you have a good point I'll add it in. If someone is good at BattlFleet Gothic, and if there is any fluff regarding this, could they please add in the fleet?
EDITS: Spelling. Wow, big wall of text. Yikes. Thanks for reading

I just felt like putting in the points cost, if anyone wanted to actually relate this to a game.