he Combined Historical Scenario (CHS) for War in the Pacific

CHS Download
CHS Components | Maps | Base Package | Scenarios | Installation | Documentation | Revision History | Alternative Art

CHS Components:

To play a CHS scenario, all of the following components must be downloaded and installed:

  1. Andrew Brown's standard WitP map package.

  2. Andrew Brown's extended WitP map package.

  3. The CHS BASE package. This package contains all of the required CHS art, as well as the CHS documentation.

  4. The CHS scenario(s) that you are interested in.



Maps:

To play CHS, both the standard and extended versions of Andrew Brown's map must be installed. To install the maps, download the two map packages from  Andrew Brown's War in the Pacific Map page. Installation instructions are given in the README files included with the packages.


CHS Base package:

The CHS Base package is a single zip file containing all of the CHS aircraft and ship art, as well as all of the CHS documentation. This package does NOT contain the CHS scenarios themselves, which must be downloaded separately. The CHS Base package has been designed this way so that it does not have to be updatede, and then downloaded, every time an update is made to the CHS scenarios themselves.

The CHS Base package is designed to be compatible with all version 2.x CHS scenarios, so that if you download an updated version of the scenario, you do not need to download the base package again.

The CHS Base package is available for download from the following locations:

CHS base package, version 2d (22 MB) CHS base package Alterative location 1 - Spooky's site
CHS base package Alterative location 2 - Richards War in the Pacific Page
CHS base package Alterative location 3 - Jeff Weatherspoon's site
CHS base package art update, version 2d (789 KB)

This file contains a number of ship and aircraft art files that replace faulty files that were included in earlier CHS base packages for CHS 2.x. This file can be downloaded and installed if you have already installed the CHS Base package version 2, 2b or 2c.

This package will update earlier versions of the base packages to the same level as version 2d.

The fixed files will prevent the problem where some Allied and Japanese ships will appear in the surface combat screen with pink backgrounds, and some Allied planetop art mismatches.

CHS art update CHS base package art update


CHS Scenarios:

Scenario variants:

There are several variants of CHS. The available CHS scenarios contain a combination of these variants, as indicated in the table below. The current variants are as follows:

  1. Soviet Navy variant. This variant is designed to be played by PBEM, or playing as the Allies against the Japanese AI. In this version, The Soviet fleet is present from the start of the scenario. This variant can ONLY be played if the Game Option "Automatic Submarine Options"  ("Auto Sub Ops") is NOT used, as the AI cannot properly handle a Soviet fleet.

  2. No Soviet navy variant. This variant is designed to be played by PBEM, playing as the Allies against the Japanese AI or playing as the Japanese against the Allied AI. In this version, the Soviet fleet becomes available around the time of automatic Soviet activation (450801) and not before, even if the Soviets are attacked. Note: CHS is not really designed to be played with an Allied AI, due to difficulties that the AI has with some of the new island bases that have been added to the scenario.

  3. Modified A2A variant: This variant has modified scenario data similar to that used in the "Nik Mod", version 9+, by Nikademus. Specifically, the following data changes are applied:
    • The durability values of all aircraft except are increased.
    • The effect rating of most AA/DP weapons has been increased to compensate.
    • The accuracy ratings of all air-to-air weapons has been decreased.
    • The maximum speed value range has been compressed by halving the difference between actual aircraft max speed and a centre point of 350 MPH.
    • Some Japanese aircraft use modified centreline mount weapons with increased accuracy. See the Nik Mod notes for details.
    • Many aircraft armour values have been increased.

    Thanks to Nikademus for modifying these scenarios.


  4. Experimental A2A variant: This variant has modified scenario data, especially for aircraft, in an attempt to reduce the "bloodiness" of air-to-air combat, as well as some other "experimental" changes. The purpose of this scenario variant is to allow testing of these changes in an in-game environment. Specifically, the following data changes are applied:
    • The starting experience values of all Allied pilots has been decreased by 10%, except for USN pilots.
    • The starting experience values of all USN and Japanese pilots has been decreased by 5%.
    • The Zero bonus has been removed (this is compensated for by the larger reduction in Allied pilot experience).
    • The durability values of all fighter aircraft, including float fighters, night fighters and fighter-bombers are increased by 60%.
    • The durability values of all other aircraft are increased by 40%.
    • The effect rating of all AA/DP weapons has been increased by 30%.
    • The maximum speed value range has been compressed by halving the difference between actual aircraft max speed and a centre point of 350 MPH.
    • The accuracy of all air launched torpedoes - Japanese and Allied - has been reduced by 25% (ship and sub launched torpedo accuracy is unchanged).

    This variant is UNTESTED and EXPERIMENTAL. Use at your own risk! This variant may also change, depending on the success, or otherwise, of these modifications.
Download:

The following CHS scenario variants are currently available to be downloaded:




A2A variant:
Variant
Soviet Navy NOT available
until August 1945
Soviet Navy available
at start of scenario
Suitable for:
PBEM
Allied vs Japanese AI
Japanese vs Allied AI
Suitable for:
PBEM (Auto Sub Ops OFF)
Allied vs Japanese AI (Auto Sub Ops OFF)
Standard
Scenario 155 Scenario 155, version 2.08
Scenario 156 Scenario 156, version 2.08
Modified Scenario 157 Scenario 157, version 2.08c
Scenario 158 Scenario 158, version 2.08c
Experimental
Scenario 159 Scenario 159, version 2.08 Scenario 160 Scenario 160, version 2.08


Installation:

For details on how to install the scenario, please see the:

CHS Scenario Installation page.


Documenatation:

Additional CHS documentation is available on this site.


Revision History:

Please see the CHS Revision History document.



Alternative Art:

Here are links to alternative art packages for CHS:

File
Description
CHS Allied ship back CHS Allied ship back
CHS Japanese ship graphics CHS Japanese ship graphics
CHS Allied ship transp CHS Allied ship transp

Files located at Spooky's WitP website
A comprehensive CHS ver2 ship graphics package (Thanks to Halsey)



CHS Contents Page
Page written by Andrew Brown.
Andrew Brown's War in the Pacific Web Page