As of Jan 10, 2008, the FreeBSD warsow port was version 0.12. Here is an update for version 0.32 (0.40 to be released soon!)
Download TGZ of PORT. Copy that file to your /usr/ports/games folder, then

cd /usr/ports/games
rm -rf warsow/ warsow-data/
tar -xvzf warsow_and_warsow-data.tgz
cd warsow && make install 

---

If you are running a warsow server, you may want to lock down your start up script...
Chroot example /usr/local/bin/wsw_server:

#!/bin/sh
WSW_BINARY="/usr/local/bin/wsw_server.amd64"
CHROOT_PATH="/var/warsow"
while [ -x $CHROOT_PATH/$WSW_BINARY ]; do
 # First set up the chroot environment in /var/warsow...
 chroot -u warsow  $CHROOT_PATH $WSW_BINARY
 # the sleep is good in case the above line
 # fails and you need to hit CTRL-C
 sleep 4
done
echo "Cannot execute $CHROOT_PATH/$WSW_BINARY"

For this to work, you need to copy all the needed files over to the new chroot directory... /var/warsow and make a user called 'warsow'. You can make the chroot directory whatever you like, and you could use 'nobody' instead of warsow, if you like.

You need a copy of ALL the warsow files and the required shared libraries in the chroot environment.

mkdir -p /var/warsow/usr/local/lib
mkdir /var/warsow/usr/local/share
mkdir /var/warsow/usr/local/bin
mkdir /var/warsow/libexec
mkdir /var/warsow/lib

rsync -av /usr/local/lib/warsow /var/warsow/usr/local/lib/
rsync -av /usr/local/share/warsow /var/warsow/usr/local/share/
cp /usr/local/bin/wsw_server.amd64 /var/warsow/usr/local/bin/wsw_server.amd64

now for the shared libraries... run this command to find out what they are:

ldd /usr/local/bin/wsw_server.*

If the server binary is linked to "libc.so.6" then do this

cp /lib/libc.so.6 /var/warsow/lib/

I ended up needing these files:

/var/warsow/lib/libc.so.6       /var/warsow/lib/libpthread.so.2
/var/warsow/lib/libm.so.4       /var/warsow/lib/libz.so.3

You will also needed this file:

cp /libexec/ld-elf.so.1 /var/warsow/libexec/

Of course, replace "wsw_server.amd64" with your binary name... could be "wsw_server.i386" or "wsw_server.x86_64".
If this is too complex for you, you can always use su.

#!/bin/sh
while true; do
 su -m nobody -c /usr/local/bin/wsw_server.amd64
 sleep 4
done

Also, you probably want to launch your warsow server in a screen session. How To launch the server is covered in the Warsow Forums.