This isn't quite correct.
From my gateway:
[Expert@GW:0]# md5sum Check_Point_CPinfo_R80.x_T33_B182.tgz
b9df390fa51d55e69ebf4b2107f8ce55 Check_Point_CPinfo_R80.x_T33_B182.tgz
[Expert@GW:0]# tar tvfz Check_Point_CPinfo_R80.x_T33_B182.tgz
drwxr-xr-x builder/fw 0 2017-09-30 23:16:34 CPinfo/
-rw-r--r-- builder/fw 4235747 2017-09-28 06:09:53 CPinfo/CPinfo-10-00.i386.rpm
-rw-r--r-- builder/fw 393 2017-09-30 23:16:30 CPinfo/cpinfo_signature
-rw-r--r-- builder/fw 52 2017-09-30 23:16:34 CPinfo/package.info
-rw-r--r-- builder/fw 1195 2017-06-15 07:26:38 bundle.xml
-rw-r--r-- builder/fw 117 2017-09-30 23:16:34 hf.config
drwxr-xr-x builder/fw 0 2017-06-15 07:26:38 scripts/
-rwxr-xr-x builder/fw 5174 2017-06-15 07:26:38 scripts/InstallCPinfo.sh
-rw-r--r-- builder/fw 8 2017-09-30 23:16:34 take_number.conf
I downloaded the same package from my WebUI:
mac:Downloads dwelch$ md5 Check_Point_CPinfo_R80.x_T33_B182.tar
MD5 (Check_Point_CPinfo_R80.x_T33_B182.tar) = aa4aff09e4afab943fe1b815a3cd4162
mac:Downloads dwelch$ tar tvf Check_Point_CPinfo_R80.x_T33_B182.tar
-rw-rw-r-- 0 admin root 837 Aug 30 09:21 Check_Point_CPinfo_R80.x_T33_B182_METADATA.tgz
-rw-rw-r-- 0 admin root 4216701 Oct 29 2017 Check_Point_CPinfo_R80.x_T33_B182.tgz
Clearly these files are different.
Perhaps there is a way to reconstruct it based on what's on the gateway, but you're probably better off just downloading the offline version of the relevant package from UserCenter.