there is nothing different! if Tails allows you to install apps then you just install Electrum-LTC like any other program. if you have issue installing on linux then you need to ask a Linux related question on a Linux forum
here is the steps you take for installing the latest stable version (2.8.3.5) according to the official website:
https://electrum-ltc.org/sudo apt-get install python-qt4 python-pip python-dev
sudo pip2 install https://electrum-ltc.org/download/Electrum-LTC-2.8.3.5.tar.gz
electrum-ltc
or download the tar.gz file,
verify the signature then run it
Yea already tried all this.
This doesn't work in tails, it has to do with persistence features, I'm pretty sure.
I'll try to post my error logs when I get a chance.
I'm sure someone has got this thing installed in tails.