how to modify sudden attack weapon properties

is that possible modify weapon properties (.LTB) ?
i don't know how to decompress & recompress the .LTB files.
i wanna modify properties, Rifle -> Sniper.
please check sample file.

virus scans (sorry. i cannot upload the link.)
virustotal.com/ko/file/63b3550320149db602ee94fb66067d1e0f1c41452c3a07b59d 39f1a5e6bb0a26/analysis
virusscan.jotti.org/en-US/filescanjob/glwzx03rq9

search for lithtech tools

I think the weapon properties in this script files. it's .txt file, but looks like encrypted. can you edit this script?



Virus Scan
virusscan.jotti.org/en-US/filescanjob/uh5k4csfqc
virustotal.com/ko/file/cd37d47f75f336facf806d7e56ba482c93c49f835792b8875c 58c7d5a3588e7d/analysis/

have any idea?