Modifying Map - How Difficult, Unlock roofs and add ladder Options

[Lanm]

I want to modify some maps to open the rooftops on them - which are partialy unreachable because of the hidden walls. I also want to add some ladders. I only have the client/server files for these maps and no sources.

How difficult would it be? I am completely new to mapping but otherwise quite expirienced.

This post has been edited by Lanm: 31/01/2015 - 20:38:56

[LiveWire]

https://github.com/UnrealKaraulov/newbspguy

Found a fork of it with more features


NEWBPSGUY Editor Updated Features:

Texture Rotation
Face Editor Update(better texture support, verts manual editor, etc, but without texture browser)
Cull leaf faces (for example 0 solid leaf for cleanup)
Leaf Editor (WIP)
Export obj, wad, ent, bsp/bspmodel, hlrad files.
Import wad, ent, bsp(in two modes)
Render .BSP and .MDL models.
Render .SPR sprites (WIP).
Full support for "angle" and "angles" keyvalue.
Full featured LightMap Editor for edit single or multiple faces.
Updated Entity Report, added search by any parameters and sorting by fgd flags.
Added "undo/redo" support for many manipulations. (Move ents/origin, etc)
Added move model(as option for transforming, like move origin)
Added CRC-Spoofing(now possible to replace original map and play it on any servers)
Updated controls logic(now can't using hotkeys and manipulation, if any input/window is active)
Support J.A.C.K fgd files
Keyvalue editor can be used for edit all selected entities
Protect map (anti-decompile, WIP) ...