Railway gun help in fallout 3 needed!

This may seem like a very nooby question but how do i build a railway/railspike gun in fallout 3???

Moderator note: Please trim down the punctuation, thanks.

A railway gun?

Like a gun you use on trains?:?

He means a gun that shoots railroad spikes.

To build anything in the game, you need to find a person that either sells Schematics for the weapon or finish a quest that offers it.

I'm not too far in the game so I don't know of anyone that sells it or any quest that hands it out...sorry

if you are a high enough level and want a bit of a challenge, go to the rivet city capitol preservation society. Abraham washington will give you a quest to get the dec. of independence, and thn wen u finish it u wil get th railway schematics

3 plans are available for the railway rifle.

free plan

MDPL-13 Power Station, go to Minefield and head NORTH-NORTH WESTtill you reach it, go inside and the plans are on the work bench.

Plan 2

Purchase from Tullip in Underworld at the General Store

Plan 3

Rewarded for completing Stealing Independence from the Museum in Rivet City

As for building it you'll need the following parts, 1 CRUTCH, 1 STEAM GAUGE ASSEMBLY, 1 FISSION BATTERYand1 PRESSURE COOKER

PS DONOT!!!!!!!!! kill the crazy sniper in minefield if you want to join the slavers in Paradice Falls as he is one of the targets they will send you to get, but it doesnt matter if you wanna kill the slavers, as his sniper rifle will come in handy (wink, wink)

And 1 last thing, check out ALL the power station buildings as it appers all are the same so its a good way to get cans of TURPENTINE, ABROXO CLEANER,1 BOTTLE OF NUKA-COLA QUANTUM and some TIN CANS (not the bent ones)for the NUKA grenade (very, VERY affective). AND you also get a free BOTTLE CAP MINEat the power stations, it will be on the work bench.

The ghoul in the underwold sells schematics for the railway gun. Dont know about the parts though ive been having trouble finding them