Probably the most viable one I've found was
1 LL (CT)
2 ML (RA)
Endo
Ferro
10 DHS
4JJ
255XL
ECM
~195/204 armour.
Notes: Good damage output... for a Spider, and the mobility to duke it out.
Good technique to master with it is the jump turn shoot; shoot mech as you approach. Jump and turn as you run past, land shoot lasers, then run towards and past mech again and repeat.
I've found 8JJ to be highly amusing but largely useless in practical terms. The extra height can help you get from Theta to the rest of the map in Snow Valley... but other than that, you're sacrificing too much for your tiny mech to justify the extra amusment factor.
Also managed to cram 2LL into the Spider's Arm.
210XL
Endo
Ferro
2 LL
1 ML
0 JJ
Note: Sacrifice speed and mobility for Sniper supermacy. But it means you actually have an effective punch and enough speed to reposition as required.
Share your good Spider 5D builds and comments on the ones tried here.
Edited by Zaptruder, 16 January 2013 - 03:23 AM.